Musnad Ahmad 3542

It was narrated from 'Abdullah bin Mas'ood (رضي الله عنه) that A man came to the Prophet (ﷺ) and said: When is Lailatal-Qadr? He said: “Who among you remembers the night when there was some brightness in the sky?" ‘Abdullah said: I do, may my father and mother be sacrificed for you. I had some dates in my hand that I was eating for sahoor, and I was concealing myself behind the back of my saddle to eat them before dawn came. And that was when the moon rose.