What is the night of destiny in the Quran?

Laylat al-Qadr

Laylat al-Qadr is an important Islamic observance that marks the occasion when God first revealed the Qurʾān to the Prophet Muhammad via the angel Gabriel (Jibrīl). This significant event is believed to have occurred during one of the last ten nights of Ramadan in 610 CE, although the specific night remains uncertain.