It is narrated from Rifaa Qutbani, he says: I went to Mukhtar, he placed a cushion for me and said: If my brother Jibreel had not stood up from it, I would have kept it for you. Hearing this, I intended to kill him, but then I remembered a hadith. My brother Sayyiduna Amr bin Humaq (may Allah be pleased with him) narrated to me that the Messenger of Allah (peace and blessings be upon him) said: If a believer entrusts another believer with his life and then kills him, I am free from the killer.