Night of Power - Wikipedia In Islamic belief, the Laylat al-Qadr (in Arabic: لیلة القدر), the Shab-e Qadr (in Persian: شب قدر), lit. 'the Night of Power, the Night of Destiny, the Night of Decree, the Night of Determination, or the Precious Night' is the night when Muslims believe the Quran was first sent down from Heaven to the world