Musannaf Ibn Abi Shaybah 39861 — Reports on the caliphate and killing

It is narrated from Sayyiduna Murrah al-Bahzi (may Allah be pleased with him), who said: One day we were with the Prophet (peace and blessings be upon him) on one of the roads of Madinah when he (peace and blessings be upon him) said: "What will you do in the tribulation that will spread through the regions of the earth like the horns of cattle?" The Companions asked: "O Prophet of Allah (peace and blessings be upon him)! Then what shall we do?" He (peace and blessings be upon him) said: "Hold fast to this man and his companions." The narrator said: So (on hearing this) I hurried and turned to that man, and I said: "O Prophet of Allah (peace and blessings be upon him)! This man?" He (peace and blessings be upon him) said: "This one." And this man was Sayyiduna Uthman (may Allah be pleased with him).