Plutarch De Iside et Osiride 30

[30] Now Osiris and Isis changed from good minor deities into gods. ¹ But the power of Typhon, weakened and crushed, but still fighting and strugglingagainst extinction, they try to console and mollify by certain sacrifices; but again there are times when, at certain festivals, they humiliate and insult him by assailing red-headed men with jeering, and by throwing an ass over the edge of a precipice, as the people of Kopto do, because Typhon had red hair and in colour resembled an ass. ² The people of Busiris ³ and Lycopolis do not use trumpets at all, because these make a sound like an ass ⁴ ; and altogether they regard the ass as an unclean animal dominated by some higher power because of its resemblance to Typhon, ⁵ and when they make cakes at their sacrifices in the month of Paÿni and of Phaophi they imprint upon them the device of an ass tied by a rope. ⁶ Moreover, in the sacrifice to the Sun they enjoin upon the worshippers not to wear any golden ornaments nor to give fodder to an ass. It is plain that the adherents of Pythagoras hold Typhon to be a daemonic power; for they say that he was born in an even factor of fifty-six; and the dominion of the triangle belongs to Hades, Dionysus, and Ares, that of the quadrilateral to Rhea, Aphroditê, Demeter, Hestia, and Hera, that of the dodecagon to Zeus, ⁷ and that of a polygon of fifty-six sides to Typhon, as Eudoxus has recorded.

[30] Osiris therefore and Isis passed from the number of good Daemons into that of Gods; but the power of Typhon being much obscured and weakened, and himself besides in great dejection of mind and in agony and, as it were, at the last gasp, they therefore one while use certain sacrifices to comfort and appease his mind, and another while again have certain solemnities wherein they abase and affront him, both by mishandling and abusing such men as they find to have red hair, and by breaking the neck of an ass down a precipice (as do the Coptites), because Typhon was red-haired and of the ass’s complexion. Moreover, those of Busiris and Lycopolis never make any use of trumpets, because they give a sound like that of asses. And they altogether esteem the ass as an animal not clean but daemoniac, because of its resemblance to Typhon; and when they make cakes at their sacrifices upon the months of Payni and Phaophi, they impress upon them an ass bound. Also, when they do their sacrifices to the Sun, they enjoin such as perform worship to that God neither to wear gold nor to give fodder to an ass. It is also most apparent that the Pythagoreans look upon Typhon as a daemoniac power; for they say he was produced in an even proportion of numbers, to wit, in that of fifty-six. And again, they say that the property of the triangle appertains to Pluto, Bacchus, and Mars; of the quadrangle to Rhea, Venus, Ceres, Vesta, and Juno; of the figure of twelve angles to Jupiter; and of the figure of fifty-six angles to Typhon; — as Eudoxus relates.