Musannaf Ibn Abi Shayba 18:904

Abu Bakr narrated to us, he said: Waki’ narrated to us, he said: Al-A’mash narrated to us, from Tamim ibn Salamah, who said: Two men testified before Shurayh against a man. They said: "We testify that this one wrestled this one, and he did not cease squeezing him until he died." Shurayh said: "Do you testify that he killed him?"