 Khui is not known from historical sources and the only certain attestation of his existence is a fragmentary relief on a stone block showing his cartouche which was published in 1912 by the Egyptologist Ahmed Bey Kamal and later republished by Raymond Weill.The block was excavated from a mastaba tomb of the necropolis of Dara near Manfalut.This necropolis is dominated by a massive funerary structure which was hastily attributed to this obscure king (the so-called "Pyramid of Khui"), assuming that the block came from its almost disappeared mortuary temple.