In the 38th section of his Itqān the polygraph Suyūṭī furnishes a summary of a monograph called al-Muhadhdhab fī mā waqa‘a fi'l-Qur'ān min al-mu‘arrab, in which he dealt with the question whether the Qur'an contained any foreign words, and if so, to what language they belonged. The orthodox felt some difficulty about admitting the existence of such an element in the language of the Sacred Book, which claims to be in perspicuous Arabic; it was, however, difficult to maintain that the proper names which occur in the volume were all of Arabic origin, and certain other words have an obviously foreign appearance. Suyūtī himself compromises by admitting in such cases the foreign etymology, but maintaining that the words had received Arabic naturalization.