It was narrated from Anas ibn Maalik (may Allaah be pleased with him) that that Jibreel came to the Messenger of Allaah (peace and blessings of Allaah be upon him) when he was playing with the other boys. He took hold of him and threw him to the ground, then he opened his chest and took out his heart, from which he took a clot of blood and said: “This was the Shaytaan’s share of you.” Then he washed it in a vessel of gold that was filled with Zamzam. Then he put it back together and returned it to its place. The boys went running to his mother – meaning his nurse – and said: Muhammad has been killed! They went to him and his colour had changed. Anas said: I used to see the mark of that stitching on his chest.
Narrated by Muslim (162).