10. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Ali ibn al-Nu’man from Sa‘id al-’A‘raj who has said the following: “I once asked abu ‘Abd Allah , about touching the Black Stone from the side of the door. He (the Imam) said, ‘Is it not the case that you want to touch the corner?’ I said, ‘Yes, that is what I want.’ He (the Imam) said, ‘Whichever way your hand reaches is sufficient.’”