سورة Al-Qadr ( The Night of Decree )

Verily! We have sent it (this Quran) down in the night of Al-Qadr (Decree)

And what will make you know what the night of Al-Qadr (Decree) is?

The night of Al-Qadr (Decree) is better than a thousand months (i.e. worshipping Allah in that night is better than worshipping Him a thousand months, (i.e. 83 years and 4 months).

Therein descend the angels and the Ruh [Jibrael (Gabriel)] by Allah's Permission with all Decrees,

Peace! (All that night, there is Peace and Goodness from Allah to His believing slaves) until the appearance of dawn.