Surah 43. Az-Zukhruf, Ayah 31

I.e., Mecca and Ta'if - implying that if it were really a divine revelation it would have been bestowed on a person of "great standing", and not on Muhammad, who had neither wealth nor a position of eminence in his native city.

 This refers to Mecca and Ṭâif, two cities in Arabia, around 100 km apart.

The world judges by its own low standards. From a worldly point of view, the holy Prophet was poor and an orphan. Why, they thought, should he be so richly endowed in spiritual knowledge and power? If such a gift had to come to a man among them, it was the right (they foolishly said) of one of the chiefs in either the sacred city of Makkah, or the fertile garden-city of Taif!