Sayyiduna Abu Dharr al-Ghifari (may Allah be pleased with him) says: We said: O Messenger of Allah, how did you come to know that you are a prophet? The Prophet (peace and blessings be upon him) said: I did not know it until I was told of it: two angels came to me while I was somewhere in the valley of Makkah. One of them said: Is it him? Then he said: Weigh him against one man. When I was weighed against one man, my side was heavier. He said: Weigh him against ten men. He weighed me against ten men, and my weight was more than theirs. Then he said: Weigh him against a hundred men. When they weighed me against a hundred men, my weight was more than theirs. Then he said: Weigh him against a thousand men. He weighed me against a thousand men, and my side was heavier. One of them said to the other: Even if you weigh him against his whole Ummah, he will outweigh them. Then one of the two said: Split open his belly! So he split open my belly, removed from it the portion of Satan and took out a clot of flesh, and threw it aside. Then one of them said to the other: Wash his belly as a vessel is washed, and wash his heart as a sheet is washed. Then he called for the Sakinah (tranquility), which was like a shining white thing, and it was placed into my heart. Then one of them said to the other: Stitch up his belly! So he stitched up my belly, and they placed the Seal between my shoulders. Then they went away from me, and I was witnessing all of this myself. Here Muhammad bin Ma'mar added these words in his narration: "They were about to fall upon me from the pan of the scale." (Allamah al-Haythami says:) I say: Sayyiduna Abu Dharr al-Ghifari (may Allah be pleased with him) has a hadith in the Sahih in the chapter on the Isra' (Night Journey), and it is other than this one.
Al-Bazzar recorded it; its chain contains a narrator, Ja'far bin Abdullah bin Uthman bin Kabir, whom Abu Hatim al-Razi and Ibn Hibban declared thiqah (trustworthy), while al-Uqayli criticised him; the remaining narrators of this report are thiqat (trustworthy) and are narrators of the Sahih.