سنن ابن ماجه

It was narrated from Salim bin ‘Abdullah that his father said: “The Messenger of Allah (ﷺ) did not touch the corners of the Ka’bah apart from the Black Corner (i.e., the corner where the Black Stone is) and the one that is next to it facing the houses of Banu Jumah (i.e., the Yemenite Corner).”