Passage 5.13.10
ἀναβασμοὶ δὲ ἐς μὲν τὴν πρόθυσιν ἀνάγουσιν ἐξ ἑκατέρας τῆς πλευρᾶς λίθου πεποιημένοι· τὸ δὲ ἀπὸ τῆς προθύσεως ἐς τὸ ἄνω τοῦ βωμοῦ τέφρας παρέχεται καὶ ἀναβασμούς. ἄχρι μὲν δὴ τῆς προθύσεως ἔστιν ἀναβῆναι καὶ παρθένοις καὶ ὡσαύτως γυναιξίν, ἐπειδὰν τῆς Ὀλυμπίας μὴ ἐξείργωνται· ἀπὸ τούτου δὲ ἐς τὸ ἀνωτάτω τοῦ βωμοῦ μόνοις ἔστιν ἀνδράσιν ἀνελθεῖν. θύεται δὲ τῷ Διὶ καὶ ἄνευ τῆς πανηγύρεως ὑπό τε ἰδιωτῶν καὶ ἀνὰ πᾶσαν ἡμέραν ὑπὸ Ἠλείων.
Steps made of stone on each of the two sides lead up to the lowest platform; from this platform upward the ascent to the higher part of the altar is composed of ashes and also provides steps. Up to this lower platform maidens and women are permitted to ascend, provided they are not excluded from Olympia; but from this point upward to the highest level of the altar men alone may ascend. Sacrifices to Zeus are performed even apart from the festival, both by private individuals and daily by the Eleans.