Passage 10.32.15
ταύτῃ μὲν δὴ τῇ ἡμέρᾳ τοσαῦτα περὶ τὸ ἱερὸν δρῶσι, τῇ δὲ ἐπιούσῃ σκηνὰς οἱ καπηλεύοντες ποιοῦνται καλάμου τε καὶ ἄλλης ὕλης αὐτοσχεδίου· τῇ τελευταίᾳ δὲ τῶν τριῶν πανηγυρίζουσι πιπράσκοντες καὶ ἀνδράποδα καὶ κτήνη τὰ πάντα, ἔτι δὲ ἐσθῆτας καὶ ἄργυρον καὶ χρυσόν·
On this day, indeed, such are the ceremonies they conduct at the sanctuary, while on the following day merchants erect booths of reed and other improvised materials. On the last of the three days, the festival culminates, during which they openly trade everything—slaves and livestock, as well as garments, silver, and gold.