Sabef is known from a stela[1] found next to the tomb of the king at Abydos.
The stela, now in the Egyptian Museum of Cairo is made of limestone and is inscribed with a long list of titles. However, the reading and translation of his titles is highly problematic, given that the earliest hieroglyphic inscriptions are still difficult to translate. On his stela Sabef is standing and looking to the right with a scepter in one hand and a staff in his other hand. His titles include:
Director of the dining-hall and of the wine-cellar of the estate all protection behind (him)[2]
Director of the domain: seat of the Horus with a harpoon and of the red house[3]
^Dilwyn Jones: An Index of ancient Egyptian titles, epithets and phrases of the Old Kingdom II. Archaeopress, Oxford 2000, ISBN1-84171-069-5, p. 738, no. 2690