(Imām Bukhārī narrates): Sa'īd ibn 'Ufair narrated to us, he said: Laith narrated to me, he said: 'Aqīl narrated to me, from Ibn Shihāb, from Hamzah ibn 'Abdullāh ibn 'Umar, from Ibn 'Umar, may Allāh be pleased with them both, he said: I heard the Messenger of Allāh ﷺ saying:

that at the time when I was sleeping, a bowl of milk was brought to me. I drank it until I saw that fullness (from the milk) was coming out from my nails. Then I gave my remainder (of milk) to 'Umar ibn al-Khattāb. The Companions asked: O Messenger of Allāh! What interpretation have you given to it? He said: Knowledge.