1 All that have a temple of Zeus of Thebes or are of the Theban district sacrifice goats, but will not touch sheep.
2 For no gods are worshipped by all Egyptians in common except Isis and Osiris, who they say is Dionysus; these are worshipped by all alike. Those who have a temple of Mendes or are of the Mendesian district sacrifice sheep, but will not touch goats.
3 The Thebans, and those who by the Theban example will not touch sheep, give the following reason for their ordinance: they say that Heracles wanted very much to see Zeus and that Zeus did not want to be seen by him, but that finally, when Heracles prayed, Zeus contrived
4 to show himself displaying the head and wearing the fleece of a ram which he had flayed and beheaded. It is from this that the Egyptian images of Zeus have a ram's head; and in this, the Egyptians are imitated by the Ammonians, who are colonists from Egypt and Ethiopia and speak a language compounded of the tongues of both countries.
5 It was from this, I think, that the Ammonians got their name, too; for the Egyptians call Zeus “Amon”. The Thebans, then, consider rams sacred for this reason, and do not sacrifice them.
6 But one day a year, at the festival of Zeus, they cut in pieces and flay a single ram and put the fleece on the image of Zeus, as in the story; then they bring an image of Heracles near it. Having done this, all that are at the temple mourn for the ram, and then bury it in a sacred coffin.