"That part of India which today we call by the Persian name Penjab is named Panchanada in the sacred language of the Indians; either of which names may be rendered in Greek by Πενταποταμια. The Persian origin of the former name is not at all in doubt, although the words of which it is composed are both Indian and Persian ... But, in truth, that final word is never, to my knowledge, used by the Indians in proper names compounded in this way; on the other hand, there exist multiple Persian names which end with that word, e.g., Doab and Nilab. Therefore it is probable that the name Penjab, which is today found in all geographical books, is of more recent origin and is to be attributed to the Muslim kings of India, among whom the Persian language was mostly in use. That the Indian name Panchanada is ancient and genuine is evident from the fact that it is already seen in the Ramayana and Mahabharata, the most ancient Indian poems, and that no other exists in addition to it among the Indians; for Panchála, which English translations of the Ramayana render with Penjab, ... is the name of another region, entirely distinct from Pentapotamia, as we shall see below."