Mukhtasar Bukhari

Narrated Ibn Umar (may Allah be pleased with them) that: I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: "While I was sleeping, (in a dream) a bowl of milk was brought to me, so I drank from it until I began to feel that its nourishment was coming out of my fingernails. Then I gave the remainder to Umar bin Khattab (may Allah be pleased with him)." The Companions (may Allah be pleased with them) asked: O Messenger of Allah! What interpretation did you give to it? He (peace and blessings of Allah be upon him) replied: "Knowledge."