Γεωγραφικα 2.1.6

2.1.6

καὶ αὐτὴ δὲ ἡ τοῦ Πατροκλέους πίστις ἐκ πολλῶν μαρτυριῶν σύγκειται, τῶν βασιλέων τῶν πεπιστευκότων αὐτῷ τηλικαύτην ἀρχήν, τῶν ἐπακολουθησάντων αὐτῷ, τῶν ἀντιδοξούντων, ὧν αὐτὸς ὁ Ἵππαρχος κατονομάζει· οἱ γὰρ κατʼ ἐκείνων ἔλεγχοι πίστεις τῶν ὑπὸ τούτου λεγομένων εἰσίν. οὐδὲ τοῦτο δὲ ἀπίθανον τοῦ Πατροκλέους, ὅτι φησὶ τοὺς Ἀλεξάνδρῳ συστρατεύσαντας ἐπιδρομάδην ἱστορῆσαι ἕκαστα, αὐτὸν δὲ Ἀλέξανδρον ἀκριβῶσαι, ἀναγραψάντων τὴν ὅλην χώραν τῶν ἐμπειροτάτων αὐτῷ· τὴν δʼ ἀναγραφὴν αὐτῷ δοθῆναί φησιν ὕστερον ὑπὸ Ξενοκλέους τοῦ γαζοφύλακος.

Besides, the credibility of Patrocles can be proved by a variety of evidence—the princes who confided to him so important trusts—the authors who follow his statements—and those, too, who criticise them, whose names Hipparchus has recorded. Since whenever these are refuted, the credit of Patrocles is by so much advanced. Nor does Patrocles appear to state any thing improbable when he says that the army of Alexander took but a very hasty view of every thing [in India], but Alexander himself a more exact one, causing the whole country to be described by men well acquainted with it. Which description he says was afterwards put into his hands by Xenocles the treasurer.