Sir Thomas Walker Arnold,
The Preaching of Islam: A History of the Propagation of the Muslim Faith
“ He too observed the law of Muḥammad (peace be upon him!) in all the countries under his rule, and throughout his reign the followers of the faith of Islam enjoyed complete prosperity. Now that by the goodness and favour of God this Kingdom of K͟hurāsān, ʻIrāq, Mā-warāʼ-al-nahr, etc., has passed into my hands, the administration is carried on throughout the whole kingdom in accordance with the pure law of the Prophet; righteousness is enjoined and wrong forbidden, and the Yarg͟hū and the institutes of Chingīz K͟hān have been abolished. ”
