This article discusses the Fatwa on Determining the Beginning and End of Ramadan.
In the Name of Allah, the Most Merciful, the Most Compassionate
All praise belongs to Allah, Lord of the worlds. Peace and blessings be upon our master Muḥammad ﷺ, his family, his companions, and all who follow them with excellence until the Day of Judgment.
Introduction: From Scholarly Inquiry to Communal Practice
More than two decades ago, I began engaging this issue both academically and communally across New England and the United States: how Muslims living as religious minorities in highly structured societies should determine the beginning and end of Ramadan in a manner that is faithful to Islamic law while responsive to contemporary realities.
Over fifteen years ago, I published a detailed juristic and scientific study on the permissibility and validity of astronomical calculation (ḥisāb falakī) for determining the Islamic lunar months. At that time, many Muslims were unfamiliar with this juristic position. Some were unaware that such a fatwā existed within classical Sunni jurisprudence, while others hesitated due to inherited practice, communal habit, or limited exposure to the breadth of fiqh discourse.
What followed was not merely publication but sustained education: community seminars, imam training, institutional consultations, parent forums, and years of careful explanation grounded in evidence and pastoral sensitivity.
Gradually, Muslim communities came to understand both the juristic foundations and the practical necessity of this approach. Today, across North America, the vast majority of mosques, Islamic schools, organizations, and families rely on the calculated Islamic calendar to determine the beginning and end of Ramadan and the days of Eid.
This transition did not result in chaos or fragmentation. On the contrary, it brought stability, clarity, and communal coherence.
This fatwā, therefore, does not introduce a novel opinion. Rather, it formally articulates a juristically sound position that Muslim communities have already been living with, successfully and responsibly, for many years.
I. Textual Foundations from the Qur’an and Sunnah
Allah ﷻ says: “They ask you about the new moons. Say: they are appointed times (mawāqīt) for people and for Hajj.” (Sūrat al-Baqarah 2:189)
Fiqh Analysis
The Qur’an establishes the lunar calendar as a means of organizing time for acts of worship and communal life. The legal objective is clarity, predictability, and dependable scheduling, not attachment to a single method divorced from context.
Allah ﷻ also says: “So whoever witnesses the month, let him fast it.” (Sūrat al-Baqarah 2:185)
Fiqh Analysis
The obligation of fasting is tied to the confirmed entry of the month (thubūt al-shahr). The verse does not specify a single technological means; rather, it establishes certainty as the legal cause (ʿillah).
The Prophet ﷺ said: “Fast when you see it, and break your fast when you see it. If it is obscured from you, then complete Shaʿbān as thirty days.” (Ṣaḥīḥ al-Bukhārī; Ṣaḥīḥ Muslim)
Fiqh Analysis
This ḥadīth demonstrates that certainty, not physical sighting alone, is the objective. When visual certainty is unavailable, Sharīʿah itself provides an alternative certainty-based method (completion within thirty days), proving that the method is subordinate to the goal.
The Prophet ﷺ also said: “We are an unlettered nation; we neither write nor calculate. The month is like this and this…” (Ṣaḥīḥ al-Bukhārī)
Fiqh Analysis
This statement describes the historical condition of the first Muslim community and the tools available to them. It does not constitute a permanent prohibition of calculation, particularly after Allah ﷻ has granted the Ummah precise, verifiable astronomical knowledge. Descriptive context is not a prescriptive restriction.
II. Linguistic and Juristic Meaning of Ru’yah
The Arabic term ru’yah does not exclusively denote physical eyesight. Classical Arabic usage includes meanings such as:
- recognition
- determination
- informed judgment
- realization based on knowledge
Accordingly, ru’yah fundamentally refers to attaining certainty regarding the entry of the month.
At the time of the Prophet ﷺ, visual sighting was the only accessible means to achieve that certainty. Today, Allah ﷻ has granted humanity precise astronomical knowledge, publicly verifiable and globally consistent, capable of determining lunar conjunction, elongation, and visibility with near-absolute accuracy. Islamic law does not sanctify tools. It sanctifies objectives.
III. Classical Scholarly Precedent
Contrary to common misconception, reliance on calculation is not a modern invention. Recognized scholars across Islamic history acknowledged that calculation may be authoritative when it yields certainty. Among them:
- jurists within the Shāfiʿī school
- Imām Taqī al-Dīn al-Subkī
- Ibn Surayj
- Later scholars such as Aḥmad Shākir and Muṣṭafā al-Zarqā
They affirmed that when calculation reaches decisive knowledge, it is legally comparable, if not superior, to contested visual reports. This position exists firmly within Sunni jurisprudence.
IV. Contemporary Scholarly Institutions and Fiqh Councils
In modern times, respected juristic bodies have affirmed astronomical calculation as a valid Sharʿī means.
Most notably, the Fiqh Council of North America (FCNA) publicly adopts calculation-based criteria for determining Ramadan and Shawwāl. This position emerged from decades of juristic deliberation, consultation with astronomers, and pastoral assessment of Muslim communal needs.
Likewise, deliberations of the Council of European Muslims and the International Islamic Fiqh acknowledge the legitimacy of astronomical calculation and observatories as authoritative tools when aligned with Prophetic guidance and scientific certainty.
V. Maqāṣid al-Sharīʿah (Objectives of Islamic Law)
This ruling fulfills the higher objectives of Sharīʿah, including:
- preservation of religion
- protection of family stability
- Unity of the Ummah
- facilitation of worship
- dignity of Muslim identity
Allah ﷻ says: “Allah intends ease for you and does not intend hardship for you.” (Sūrat al-Baqarah 2:185)
Astronomical calculation clearly serves this divine intent.
VI. Twenty Years of Lived North American Experience
When this approach was first advocated more than two decades ago, resistance often stemmed from unfamiliarity rather than from evidence.
Over time, communities recognized that:
- Children attend public schools
- Employers require advance notice for religious observances
- Eid absences must be requested weeks in advance
- Islamic schools must plan academic calendars
- mosques must organize prayers, ifṭārs, and programming
Without known dates, Muslims were perpetually reactive. Calculation resolved this.
Today, Muslim families plan spiritually and logistically, institutions coordinate nationally, and confusion has dramatically decreased. This is not theoretical maṣlaḥah. It is lived benefit.
VII. Contemporary Responsibility of Religious Leadership
Local sighting remains a valid fiqh opinion. However, leadership is not about reopening settled communal decisions annually. Fiqh is applied to real people, real families, and real societies.
True leadership requires:
- understanding community circumstances
- choosing among valid opinions what best preserves unity
- facilitating worship rather than complicating it
The Prophet ﷺ consistently chose ease when multiple lawful options existed. Perpetual uncertainty is neither prophetic nor pastoral.
Final Ruling (Al-Ḥukm al-Sharʿī)
After examining the Qur’an, Sunnah, linguistic evidence, classical jurisprudence, contemporary astronomical findings, recognized fiqh council positions, and over two decades of communal experience, I affirm:
It is Islamically valid and juristically sound to determine the beginning and end of Ramadan through reliable astronomical calculations, provided that such calculations yield certainty equal to or greater than traditional moon sighting.
Accordingly:
- Astronomical calculation constitutes a legitimate form of ru’yah.
- Muslim institutions are religiously permitted and strongly encouraged to adopt calculation-based Islamic calendars.
- In North America and similar contexts, this approach best fulfills:
- Sharʿī evidence
- Maqāṣid al-Sharīʿah
- communal welfare
- educational stability
- Unity
A Brotherly Counsel to Imams, Boards, and Community Leaders
This issue is not about measuring religiosity or competing for legitimacy. It concerns the application of fiqh to the lived realities of Muslim minorities.
Our juristic tradition is rich and diverse. Yet leadership requires selecting sound opinions that preserve unity, protect dignity, and reduce hardship.
A calculation-based approach has provided clarity and stability for many years. Let us uphold what serves our communities best and allows Muslims to worship Allah with peaceful hearts.
May Allah unite our hearts, accept our fasting and prayers, and guide us to what is most pleasing to Him.
And Allah knows best.
