—granted Genghis Khan and his descendants dominion over the face of the earth.”
Al-Juwayni comments: The Mongol shaykhs testify to this and accept it without question.
Al-Juwayni then cited some (1) clauses of the yasa (2): whoever commits zinā (fornication or adultery) is put to death (3), whether previously married or not; likewise, whoever commits liwāṭ (sodomy) is killed; whoever deliberately lies is killed; whoever practices sorcery is killed; whoever spies is killed; whoever steps in between two disputants and helps one side is killed; whoever urinates in standing water is killed; whoever immerses himself in it is killed; whoever, without the permission of a captive’s owners, feeds him, gives him drink, or clothes him is killed (4); whoever finds a fugitive (5) and does not return him is killed; whoever feeds a captive (6) or tosses food to anyone is killed—he must instead pass it from hand to hand. Whoever offers food to another must taste it first, even if the one being served is an amir rather than a prisoner. Whoever eats without sharing his food with those present is killed. Whoever slaughters an animal is slaughtered likewise; rather, his belly is ripped open and he must reach in with his own hand to extract its heart first.
All of this clashes with the divine laws that Allah revealed to His servants, the prophets, peace be upon them. Whoever abandons the sound, decisive Sharīʿah sent down upon Muḥammad ibn ʿAbd Allah, the Seal of the Prophets, and refers for judgement to any other abrogated code has committed disbelief. How much worse, then, is the case of one who refers to the yasa (7) and prefers it over the Sharīʿah! Whoever does so is a disbeliever by consensus of the Muslims.
Allah the Exalted says: “Do they seek the judgement of the age of ignorance? Yet who is better in judgement than Allah for a people who are certain?” (Quran 5:50). And He says: “But no, by your Lord, they will not truly believe until they make you judge concerning that over which they dispute among themselves, then find within themselves no discomfort concerning what you have decided, and submit with full submission.” (Quran 4:65). Allah, Mighty and Majestic, has spoken the truth.
Among their customs are: absolute obedience to their ruler (8) to the utmost of their ability; presenting to him their fair virgins so that he and whichever members of his entourage he wishes may choose from them; addressing the king by his personal name; allowing anyone who passes by a group that is eating to share their food without asking permission, provided he does not step over the fire or the food tray; refraining from standing on the threshold of the kharqāh (royal felt pavilion) (9); not washing their clothes until the dirt becomes plainly visible; exempting scholars from any of the aforementioned penalties; and leaving a deceased person’s property untouched.
ʿAlāʾ al-Dīn al-Juwayni has recorded a large (10) body of reports about Genghis Khan and the acts of magnanimity he used to perform.