Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates this about the Prophet (peace and blessings be upon him): Sayyiduna Jibril (peace be upon him) took something out of his belly (that is, the blessed heart) into a basin of gold, washed it and then filled it with wisdom and light, and filled it with wisdom and knowledge. (Allamah al-Haythami says:) I say: part of this narration is mentioned in the Sahih.
At-Tabarani recorded it; its chain contains Rishdin bin Sa'd, whom the majority declared da'if (weak).