40-26 Al-Hakim Abu Ali Al-Husayn ibn Ahmad al-Bayhaqi narrated that Muhammad ibn Yahya al-Sowli quoted on the authority of Al-Qalabi, on the authority of Ahmad ibn Isa ibn Zayd, “When Al-Ma’mun ordered a man to be killed, the man said, ‘Let me live since I have been grateful to you.’ He said, ‘Who are you to be grateful?’ Then Ali ibn Musa Ar-Ridha’ said, ‘O Commander of the Faithful! I adjure you by God the Highest that you appreciate what the people do - even if it is very little - since God the Highest ordered His servants to thank Him. They thanked Him and He forgave them.’”