Musannaf Ibn Abi Shaybah 34321 — Reports on Sad bin Abi Waqqas

Mus'ab bin Sa'd (may Allah have mercy on him) said that Sayyiduna Sa'd (may Allah be pleased with him) heard a man speaking ill of Sayyiduna Ali (may Allah be pleased with him), so he (may Allah be pleased with him) invoked Allah against him. Then a Khurasani she-camel trampled him and killed him.