Zayd bin Abi Anisa زيد بن أبي أنيسة · The Book of Purification

"Abdullah told us: 'The Messenger of Allah (ﷺ) was praying at the House (the Ka'bah) and a group of the nobles of Quraish were sitting there. They had just slaughtered a camel and one of them said: "Which of you will take these stomach contents with the blood and wait until he prostrates, then put them on his back?" 'Abdullah said: 'The one who was most doomed got up and took the stomach contents, then went and waited until he…