Day and Night الليل والنهار

Overview

The alternation of day and night (اللَّيل وَالنَّهَار, al-layl wa al-nahar) is one of the most frequently invoked signs in the Quran — a rhythmic proof of Allah's wisdom available to every observer.

Etymology

اللَّيل (al-layl) denotes the dark portion of the day; النَّهَار (al-nahar) the bright. The Quran consistently pairs them, often using the verb يُكَوِّر (yukawwir) — to wrap or coil — for the way each succeeds the other.

Quranic references

Surah Aal-Imran 3:190 — "Indeed, in the creation of the heavens and the earth and the alternation of the night and the day are signs for those of understanding."

Surah Az-Zumar 39:5 — "He wraps the night over the day and wraps the day over the night."

يُكَوِّرُ اللَّيْلَ عَلَى النَّهَارِ وَيُكَوِّرُ النَّهَارَ عَلَى اللَّيْلِ

Surah Yunus 10:6 — "Indeed, in the alternation of the night and the day and what Allah has created in the heavens and the earth are signs for a people who fear Him."

Surah Al-Furqan 25:62 — "And it is He who has made the night and the day in succession for whoever desires to remember or desires gratitude."

Surah An-Naba 78:10-11 — "And made the night as clothing and made the day for livelihood." This sits within the great news passage of cosmic signs.

Hadith and tradition

Abu Huraira reported that the Prophet ﷺ said: "Angels of the night and angels of the day take turns in attending you, and they meet at the dawn and afternoon prayers." — Sahih al-Bukhari 555; Sahih Muslim 632

Aishah narrated the Prophet's ﷺ habit of standing in salah at night until his feet swelled, framing night as a special time for dua and remembrance.

Significance

For classical mufassirun, the cycle of day and night is the most accessible ayah: it works whether one is wealthy or poor, learned or unlettered. Ibn Kathir reads the pairing as a structured mercy — night for rest and intimacy with Allah, day for striving and gratitude. The image of "wrapping" suggests a sphere — a point classical scholars noted long before modern cosmology. The pattern foreshadows the order of the seven heavens and the eventual unwinding of all rhythms on the Hour.

See also

• Mountains in the Quran
• The Great News
• Seven Heavens
• Salah

References

1. Ibn Kathir, Tafsir al-Quran al-Azim, on Surah Aal-Imran 3:190.
2. al-Tabari, Jami al-Bayan, on Surah Yunus 10:6.
3. al-Qurtubi, al-Jami li-Ahkam al-Quran, on Surah Az-Zumar 39:5.
4. Ibn al-Qayyim, Miftah Dar as-Sa'ada, on cosmic signs as evidence for tawhid.