Sunan Ibn Majah 2956

ʿAlī ibn Muḥammad narrated to us: Muḥammad ibn al-Fuḍayl narrated to us, from al-ʿAlāʾ ibn al-Musayyab, from ʿAṭāʾ, from ʿAbd Allāh ibn ʿUmar, who said: I heard the Messenger of God (peace and blessings be upon him) say, “Whoever circumambulates the House and prays two rakʿahs, it is as if he freed a slave.”