It is narrated from Imam Sadeq (AS) who said:

When the Night of Qadr arrives, the angels, spirit (Divine Spirit), and Divine Recorders descend to the world’s sky. They will record whatever the Divine Destiny is for that year, and then they will transpose any case by God’s Will, or increase or decrease it. And they will eliminate whatever Allah (SWT) commands. And then the Almighty will make happen whatever is God’s Will [1].

[1] Tafseer Nooral-Thaqalayn, Al-Howayzi, Vol. 2, Page 515, Hadith 174; Tafseer Qomi, Ibrahim Qomi, Vol. 1, Page 366.

Source:en.shafaqna.com