The debate regarding moon sighting vs. calculation for determining the beginning of Ramadan and other lunar months is a significant discussion in the modern Muslim world. Recently, major Islamic organizations in North America have moved toward depending on astronomical calculations to unify the community and facilitate planning. This article explores the juristic reasoning behind this approach and the balance between traditional sighting and modern science.
The Importance of Unity
Before delving into the technical differences between sighting and calculation, it is paramount to emphasize the importance of unity (Wahdah). Muslims, especially those living as minorities in the West, should prioritize their solidarity as a community.
Internal differences on juristic details should not lead to animosity. Critical issues should be judged with wisdom, placing the well-being and unity of the Muslims above individual preferences.
Contextualizing the Prophetic Tradition
Those who support the use of calculations address the famous Hadith often used to argue for naked-eye sighting alone.
It was narrated that the Prophet (peace and blessings be upon him) said:
“We are an unlettered nation; we neither write, nor calculate. The month is only like this and this, i.e. sometimes of 29 days and sometimes of 30 days.” (Sahih al-Bukhari 1913)
Scholars explain that when the Prophet (peace and blessings be upon him) described the community as “unlettered,” he was describing the reality of his time—naked-eye sighting was the only reliable means available to them. He did not imply that the Ummah should remain at that level of technology forever. Just as the Prophet (peace and blessings be upon him) encouraged literacy and civilization, using modern means to achieve the same goal (knowing the start of the month) is in line with the spirit of Islam.
Astronomy as a Form of Observation
The Qur’an provides ample evidence for the scientific observation of the celestial bodies.
Allah says in the Qur’an:
“The sun and the moon [move] by precise calculation.” (Surah Ar-Rahman, 55:5)
Modern astronomy is a science based on the precise observation of the positions of the sun and the moon. By following scientific methods of calculation, Muslims are still “observing” the moon, but through far more precise instruments than the naked eye. Therefore, this approach does not contradict the original intent of the Prophetic command to observe the moon; rather, it refines it.
Why Past Scholars Hesitated
Some may argue that scholars of the past rejected calculations. However, in previous centuries, there was often little distinction between astrology (fortune-telling based on stars, which is forbidden) and astronomy (the scientific study of celestial mechanics).
Today, astronomy is a distinct, exact science. Since the Qur’an teaches that the universe follows fixed divine laws and does not run erratically, there is an observable pattern that can be calculated. This is why prominent classical scholars like Imam As-Subki supported calculations even before the advent of modern technology.
The Principle of Facilitation (Taysir)
Finally, relying on calculations serves a great public interest (Maslahah) for Muslims in the West. It allows for the planning of festivals and holidays in advance, facilitating work and school arrangements. The principle of Taysir (facilitation) is a significant consideration in Islamic jurisprudence, helping the community integrate their religious observances smoothly into their daily lives.
