Musannaf Ibn Abi Shaybah

Hazrat Qais (may Allah have mercy on him) narrates that Hazrat Amr bin Ma'di Yakrib (may Allah have mercy on him) passed by us on the day of Qadisiyyah while we were in rows. He (may Allah be pleased with him) said: O group of Arabs! Become lions who attack fiercely. Indeed, a lion is unconcerned about its own state. Indeed, the Iranians are like that deer which has already been struck by a spear.