While this disagreement was playing out, so was the Muslim conquest of Persia, which began just a year after the prophet’s death in 632. The Persian Sassanid Empire, exhausted financially and militarily from decades of warfare with the Byzantine Empire, endured a decisive defeat in the Battle of Qadisiyyah in 636.
在这一分歧愈演愈烈的同时，穆斯林从先知逝世（632年）的第二年开始征服了波斯。在与拜占庭帝国的长达数十年的战争中，波斯萨珊王朝耗尽了财力军力，终于在636年的嘎底西叶战役中惨败。