To Babylon
(A large number of those who had fled on the day of al-Qādisiyyah had regrouped there and placed Firūzān over them. Zuhrah therefore sent word to Saʿd, informing him that the defeated forces were massing in Babylon, so Saʿd marched with the armies to Babylon.)
He and Firūzān faced one another near the city, and Saʿd routed them faster than a cloak can be wrapped. The Persians fled before him (between his very eyes) in two directions: one detachment made for al-Madāʾin, while the other headed (1) for Nahāwand. Saʿd remained in Babylon for a few days and then moved on toward al-Madāʾin. There they encountered another Persian force; a bitter battle ensued, and they called out for single combat (2) with the Persian commander, Shahriyār.
A Muslim stepped forward—Nāʾil al-Aʿrajī Abū Nabātah (3), one of the brave men of Banū Tamīm. For a while they exchanged thrusts with lances, then cast them aside, drew their swords, and fought with those. They grappled, fell from their horses, and rolled to the ground. Shahriyār landed (4) upon Abū Nabātah’s chest and produced a dagger to kill him, but his finger slipped into Abū Nabātah’s mouth; Abū Nabātah bit down hard, distracting him, seized the dagger, slew Shahriyār with it, and took his horse, his two bracelets, and the rest of his gear. Shahriyār’s men broke ranks and were put to flight. Saʿd then bound Nāʾil by oath to wear Shahriyār’s bracelets and arms and to ride his horse whenever battle was joined, and Nāʾil did so.
They say: He was the first man to scale a wall in Iraq, at a place called Kuthā (5). He also visited the spot where the Friend of Allah—Abraham—had once been imprisoned, offered prayer for him and for all the prophets, and recited: “And such days We alternate among the people” (Āl ʿImrān 3:140).
Bahrasīr (6)
They say: Saʿd then sent Zuhrah ahead of him from Kuthā to Bahrasīr to lead the vanguard. At Sābāṭ, Shirzād met him with terms of truce and jizyah; Zuhrah forwarded him to Saʿd, who ratified the pact. Saʿd and the troops reached a place called Muẓlim Sābāṭ, where they found many of Kisrā’s regiments known as the Būrān (7). Every day these troops would swear, “The kingdom of Persia will never fall while we live.” With them was a huge lion belonging to Kisrā, called al-Muqarrat, which they had stationed in the Muslims’ path. Saʿd’s nephew, Hāshim ibn ʿUtbah, advanced upon it and slew the lion while all looked on; on that day his sword was named al-Matīn (8). Saʿd kissed Hāshim’s head, and Hāshim kissed Saʿd’s foot. Hāshim then charged the Persians, drove them from their positions, and routed them while he was—