It was narrated from ‘Abdullah bin ‘Ubaid bin ‘Umair that a man said: “Abu ‘Abdur Rahman, why do I only see you touching these two corners?” He said: “I heard the Messenger of Allah ﷺ say: ‘Touching them erases sins.’ And I heard him say: ‘Whoever circumambulates seven times, it is like freeing a slave.” (Hasan)