and the acts of magnanimity he would carry out (1) by virtue of his native disposition and the promptings of his reason, even though he was a polytheist who worshipped others alongside Allah. He had slain multitudes whose number is known only to the One who created them. Yet the first provocation (2) came from Khwarazm Shah. When Genghis Khan dispatched merchants on his behalf, laden with abundant goods from his lands, they reached Iran, where the governor under Khwarazm Shah—who was the father of Kishli Khan’s wife—killed them and seized everything they had. Genghis Khan therefore sent to Khwarazm Shah (3) to ascertain whether this had taken place with his approval or whether he was unaware (4) of it.
Khwarazm Shah disavowed the deed and replied: “It is well known among kings that merchants are not to be killed, for they are the lifeblood of the provinces and the ones who bring to kings gifts (5) and precious rarities. Moreover, those merchants followed your own religion, yet your deputy slew them. If this was by an order you gave, we shall demand (6) retaliation for their blood; otherwise, repudiate it and punish your deputy.”
When Khwarazm Shah heard this from Genghis Khan’s envoy, he could think of no answer except to order the envoy beheaded (7)—a grievous miscalculation, for he was senile and advanced in age. The hadith states, “Itrukū al-Turk mā tarakūkum” (Leave the Turks so long as they leave you) (8).
When word of this reached Genghis Khan, he prepared to fight Khwarazm Shah and seize his territories. By Allah’s decree there then occurred events more astonishing and more horrific than any ever heard.
Al-Juwayni relates, among other things, that a peasant once brought him, as part of the game he had caught (9), three melons. It so happened that none of the treasurers were present with Genghis Khan, so he said to his wife, the khātūn, “Give him those two earrings you are wearing; each of them contains an exceedingly precious gem.” The woman begrudged them and said, “Postpone it until tomorrow” (10). He replied, “The man will spend this night anxious, and perhaps nothing will be given to him after this. Besides, whoever buys these two will inevitably bring them back to you (11)…"