Rashid ah-Din (1247–1318) was a Persian Jew who converted to Islam at the age of 30. He was also a historian who focused on the Mongol Empire, a prolific writer, and an influential statesman.

The book recorded that in 1280, Kublai Khan forbade the Muslims and Jews from ritual slaughtering. Ah-Din told in detail the story that was most probably documented in the Code of Yuan on 27th January 1280.

The book further wrote that, in 1287, Kublai Khan was persuaded to relax these rules because the restriction led to a decrease in foreign trade and tax revenue.