2. Ali has narrated from his father from Ibn Abi ‘Umayr from Hammad from al-Halabiy who has said the following: “I once asked abu ‘Abd Allah عليه السلام, about a blind man who leads a people in Salah (prayer) and is not facing al-Qiblah (al-Ka‘bah). He (the Imam) said, ‘Only he, but not they, performs again; they had made the effort (about al-Qiblah (al-Ka‘bah)).’”