Sahih al-Bukhari 4483 - "...And take you (people) the Maqam (place) of Ibrähim (Abraham) (or the stone on which Ibrãhim LiI stood while he was building the Ka'bah) as a place of prayer (for some of your prayers, e.g. two Rak'at after the Tawaf of Ka'bah) . . ." (V.2:125) | Criterion