Who Sighted the Crescent? | Ramadan, the Calendar and the Question of Moon Sighting
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Who Sighted the Crescent?
Worship begins with the eye, not the printed calendar. The onset of Ramadan and Eid is tethered to the visual sighting of the hilal, rather than to astronomical spreadsheets.
In our childhood, the anticipation of Ramadan evenings held a different thrill entirely. Elders would take a piece of smoked, rusty glass, climb to a high vantage point, and squint into the horizon. The first to spot the crescent would announce it with unbridled joy. At that very moment, the atmosphere itself shifted — the fast had begun.
But what about today? We glance at the calendar on our walls. We check the apps on our smartphones. Hardly anyone searches the twilight sky for the crescent anymore.
In 1976, Fethullah Gülen raised a crucial question: "Why does Saudi Arabia celebrate Eid a day earlier than us? Can someone residing in Turkey simply follow Saudi Arabia and observe Eid a day ahead of their own locality?" Decades have passed, yet the predicament remains the same.
The foundational issue here is the requirement of visually confirming the hilal. The observance of sacred months and their associated religious duties are explicitly bound to the emergence of the crescent in the sky. This is the very design of the Sharia. God mandated the month of Ramadan and its fast in the Holy Quran, and the Prophet Muhammad (peace be upon him) decreed exactly the same in all major collections of Hadith: "Fast when you see it [the crescent], and break your fast when you see it."
All four major schools of Sunni jurisprudence unanimously reject the establishment of lunar months based purely on mathematical or astrological calculations. Commencing Ramadan or Eid solely based on printed calendar calculations contradicts both the divine command and the Prophetic tradition.
The core principle is witnessing the crescent. Undoubtedly, whoever sights it must fast; whoever sights it must observe Eid.
The Sharia's Crescent Prerequisite and the Stance of the Four Madhhabs
The institution of witnessing (shahadah) is vital for the commencement of Ramadan. For the Ramadan crescent, the testimony of a single trustworthy individual from the congregation is deemed sufficient. However, for the Eid crescent, the testimony of at least two individuals is strictly required, as the rights of the general public are involved in breaking the fast.
It is legally imperative that these witnesses are faithful and morally upright; the testimony of an unreliable transgressor (fasiq) holds no validity in religious affairs. The four major schools of thought are in complete consensus: Ramadan cannot be definitively established by mathematical calculation, calendars, or pure observatory data.
Surah Al-Baqarah, 185: "The month of Ramadhan is that in which was revealed the Qur'an, a guidance for the people. So whoever sights the new moon of the month, let him fast it." — Read verse →
Hadith 1 — Ibn Umar: "Do not fast till you see the new moon, and do not break your fast till you see it; but if the weather is cloudy, calculate about it." Buhari, Savm 11 — Muslim, Siyam 9 · Source →
Hadith 2 — Abu Huraira: "Fast when you see it, and break your fast when you see it." Buhari, 1909 · Source →
Hadith 3 — Kuraib from Ibn Abbas: "We sighted the crescent in the Levant on Friday." Ibn Abbas said: "We saw it on Saturday; we will continue to fast until we complete thirty days or until we see it." Muslim, Siyam 28 · Source →
Now, let us address the crux of the matter — the crescent's celestial journey from east to west.
Every month, the crescent begins its formation in the east. As it moves westward across the globe, it grows in size. The crescent is fundamentally different from the sun. A crescent that begins its formation ten time zones to our east will reach our horizon ten hours later. During those ten hours, it has matured — growing from a sliver into a more substantial crescent.
Consider this carefully: we do not fast upon a "full 24-hour crescent." Sometimes we begin our fast with a twelve-hour crescent, sometimes a six-hour one, and occasionally a mere fraction of that. The Sharia never dictated "fast only when you see a crescent that is precisely twenty-four hours old." It simply commanded, "fast at whatever stage of development you sight it."
The hilal is born in the east as a thin, hairline sliver, thickening as it sweeps westward. The crescent we observe in Istanbul is hours older and significantly more mature than the one initially visible in Mecca.
The East-to-West Journey of the Crescent — Physics and Calculation
The hilal is the slender arc that becomes visible when the moon exits the direct line between the Earth and the Sun. It originates in the east and advances westward. A crescent born ten degrees east of us will reach our skies ten hours later — and in those ten hours, it has already matured.
For it to be visible to the naked eye, it must reach a certain threshold of maturity. In clear, dry atmospheric conditions at high altitudes, even an extremely nascent crescent can be sighted. Gülen personally recounts having clearly seen a one-day-old crescent, as thick as a finger, while positioned directly above the Kaaba. The same crescent would be invisible in İzmir's humid air.
Calculated calendars, however, base their dates on the astronomical birth of the moon — ignoring fractional, early-stage crescents and pushing the date to the following day. This is precisely why Turkey frequently commences Ramadan a day early or a day late compared to visual sightings.
Printed calendars are operating under a systemic error from which they cannot retreat — because their calculations are internally consistent, yet they are anchored in pure astronomy rather than Sharia. We continuously eat and drink while the crescent is already in the sky, waiting until the calendar officially acknowledges it.
The consequences are severe: every year in Turkey, either the first day of Ramadan or one day of Eid al-Adha falls on the wrong date. Without realizing it, the public ends up fasting on forbidden days — for it is strictly haram to fast on the day of Eid. This is an immense spiritual loss.
Ikhtilaf al-Matali: The Diversity of Horizons
Ikhtilaf al-Matali refers to the phenomenon where the crescent is sighted at different times across different geographical regions. The premise that "every country fasts according to its own horizon" is defended by some modern muftis. However, the jurisprudential basis for this is weak. Such a concept does not even exist in the classical texts of the early Hanafi scholars.
The Hadith attributed to Aisha (RA) used to support this has no authentic chain, and the narration from Ibn Abbas (RA) is mawquf — meaning it is a statement of a Companion, not the Prophet himself.
Furthermore, those who champion the diversity of horizons misapply geography. Fethullah Gülen provides a concrete example: half of a village in Mardin lies within Turkey, and the other half in Syria. A border runs straight through it. The Syrians celebrate Eid one day, and the Turks celebrate it the next. The exact same village, under the exact same sky, observing the exact same moon, experiences two different Eids. This is the clearest evidence that the theory is internally contradictory.
Gülen recounts a historical scene: Ibn Abbas asked a Syrian man in the presence of Muawiyah, "When did you observe Eid?" When the man replied that they had observed it a day earlier, Ibn Abbas stated, "I did not see the crescent. I observed it a day later." Two Companions acted differently — not in dispute, but in articulation of the crescent's geographic reality.
The issue is simple yet profound: Worship begins with the eye, not the calendar. Our elders, climbing high with their smoked glass, intuitively understood this reality. We, unfortunately, have forgotten.
This article is based on Fethullah Gülen's lecture on December 17, 1976, and his sermon at the Izmir Bornova Central Mosque on October 19, 1979.
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