Musannaf Ibn Abi Shaybah 35924 — What they said on hamstringing horses

Yahya bin Abbad bin Abdullah bin al-Zubayr reported from his father and grandfather: "My father, who suckled me among Banu Murrah, told me: 'It is as if I am looking at Sayyiduna Ja'far (may Allah be pleased with him) on the day of the Battle of Mu'tah. He dismounted from his reddish horse, then hamstrung it, joined the battle and fought until he was martyred.'"