Ἀϊδόσδε

From LSJ

ὃ σὺ μισεῖς ἑτέρῳ μὴ ποιήσεις → don't do to others what you don't want them to do to you

Source

Spanish (DGE)

adv. al Hades, Il.7.330, Hes.Sc.254, v. ᾍδης.

Russian (Dvoretsky)

Ἀϊδόσδε: adv. в Аид Hom.