Sunan Abi Dawud 11:33

This tradition has also been transmitted by Shu’bah through a different chain of narrators similar to that reported by Abu al-Walid. This version adds he then took out the blood by pressing it with his hand. Abu Dawud said :

Hammam’s version has the words “He took out the blood by pressing with his fingers”. Abu Dawud said this tradition has been narrated by the people of Basrah who alone are its transmitters.