Surah Al-Qadr 97:1

إِنَّآ أَنزَلْنَـٰهُ فِى لَيْلَةِ ٱلْقَدْرِ

Indeed, We sent it [i.e., the Qur’ān] down during the Night of Decree.

Translation: Saheeh International

Tafsir

Lo! We revealed it that is the Qur’ān in its entirety sending it down from the Preserved Tablet to the heaven of this world on the Night of Ordainment that is the Night of great eminence.

Excerpt from Tafsir al-Jalalayn, commentary on 97:1, via Quran.com. The reader has the full commentary and 9 more tafsirs.