ʿUyūn akhbār al-Riḍā

11-30 Ali ibn Ahmad ibn Muhammad ibn Imran ad-Daqqaq - may God be pleased with him - narrated that Muhammad ibn Abi Abdillah al-Kufi quoted on the authority of Muhammad ibn Isma’il al-Barmaki, on the authority of Al-Hussein ibn Al-Hassan, on the authority of Bakr ibn Ziyad, on the authority of Abdul Aziz al-Mohtadi, “I asked Al-Ridha about the Unity. The Imam (s) said, ‘Whoever recites (the Quranic verse) ‘Say, He is Allah, the One and Only’ and believes in it has recognized Unity.’ Then I asked, ‘How should we recite it?’ The Imam (s) said, ‘ Recite it as the people recite it.’ The Imam (s) also added, ‘Kathaleka Rabbi. Kathaleka Rabbi’ (This is how my Lord is. This is how my Lord is)’ for three times.’”