مسند أحمد

Asim bin Kulaib said: My father said: I told Ibn 'Abbas and he said: What is so amazing about that? When ʼUmar called the prominent shaikhs among the Companions of Muhammad ﷺ, he would call me with them and say: Do not speak until they have spoken. He called us one day or one night and said: The Messenger of Allah (ﷺ) ﷺ said about Lailatal-Qadr what you know, so seek it in the odd numbered nights of the last ten nights; on which odd-numbered night do you think it is?