Explanation: After the ruler of the Khwarizmi Empire provoked a war with Genghis Khan by robbing his merchants and executing his diplomats (twice), Genghis prosecuted a quick and brutal war against the Khwarizmi in which the majority of the empire was destroyed inside of two years.
Memorably, upon taking a particularly valuable city, Bukhara, he briefly entered the mosque in full view of the town’s detained notables (the only time Genghis is known to have entered a sedentary building himself), and then re-emerged to give a short speech, in which he harangued them as bringing down the Mongol conquest on themselves. “If you had not committed such great sins, God would not have sent such a punishment like me upon you.”
Considering that Genghis’s polity even at that early point contained a multitude of religions, including many Muslims, he probably understood the religious tropes that would most rattle the Muslim audience of the Khwarizmi nobility.
The nobility were then shipped off to Mongolia as slaves.
Genghis never entered a building other than that one? Was he an outside man?
As a nomad, he spent most of his time either outdoors or in tents. The Mongols during this period had no sedentary cities of their own, and Genghis rarely spent much time around the lands he conquered after the war was over.
Source: a hourse (s)
Genghis Khan:





