1. A number of our people have narrated from Sahl ibn Ziyad from Ahmad ibn Muhammad ibn abu Nasr from al-‘Ala’ ibn Razin from Muhammad ibn Muslim who has said the following: “I asked abu Ja‘far عليه السلام, ‘What part of al-Ka‘bah should I touch after completing my Tawaf?’ He (the Imam) said, ‘You should touch its backside.”’