Isaiah 20:4

so the king of Assyria will lead away the captives of Egypt and the exiles of Cush, young and old alike, naked and barefoot, with bared buttocks—to Egypt’s shame.

So shall the king of Assyria lead away the Egyptians prisoners, and the Ethiopians captives, young and old, naked and barefoot, even with their buttocks uncovered, to the shame of Egypt.