2 Samuel 10:4

10:4 So Hanun seized David’s servants and shaved off half of each one’s beard. He cut the lower part of their robes off so that their buttocks were exposed, ¹  and then sent them away.

Yesaya 20:4

20:4 so the king of Assyria will lead away the captives of Egypt and the exiles of Cush, both young and old. They will be in undergarments and barefoot, with the buttocks exposed; the Egyptians will be publicly humiliated. ² 

[10:4]  ¹ tn Heb “and he cut their robes in the middle unto their buttocks.”

[20:4]  ² tn Heb “lightly dressed and barefoot, and bare with respect to the buttocks, the nakedness of Egypt.”