Musannaf Ibn Abi Shaybah 35948 — Reports on fleeing from the advancing

It is narrated from Abd al-Rahman bin Abi Layla that two men fled from the battlefield of Kufah on the day of Maskan. They came to Sayyiduna Umar (may Allah be pleased with him), who rebuked them and took them severely to task, saying: "You two have come back fleeing?" He then intended to send them off to the battlefield of Basrah, but they said: "O Commander of the Believers (may Allah be pleased with him)! No, rather send us back to the same battlefield from which we fled, so that our repentance may also come from there."