This volume deals with the aftermath of the decisive battle at al-Qadisiyyah described in the previous volume. First, the conquest of southern Iraq is consolidated; in rapid succession there follow the accounts of the battles at Burs and Babil. Then in 16/637 the Muslim warriors make for the capital al-Mada'in, ancient Ctesiphon, which they conquer after a brief siege. The Persian king seeks refuge in Hulwan, leaving behind most of his riches, which are catalogued in great detail. In the same year the Muslim army deals the withdrawing Persians another crushing blow at the battle of Jalula'....