8. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Ja‘far ibn Bashir form Hammad from Hisham who has said the following: “I once asked abu ‘Abd Allah , ‘Is it sufficient for me to say Tahlil, (no one deserves worship except Allah) and Takbir (Allah is great beyond description) in Ruku‘ (bowing down on one’s knees) instead of Tasbih (Allah is free of all defects). He (the Imam) said, ‘Yes, it is sufficient.’”