The Book of Asceticism · Hadith 146 (#Ḥadīth #4)

حماد عن حريز عن زرارة عن أحدهما عليهما السلام قال: لا يكتب الملك الا ما يسمع قال الله عز وجل: واذكر ربك في نفسك تضرعا وخيفة قال: لا يعلم ثواب ذلك الذكر في نفس العبد غير الله تعالى.

4.Ḥammād narrated from Ḥarīz, from Zurārah, from one of the two (al-Bāqir or al-Ṣādiq) who said, “The angel does not write down except that which he hears. Allah, to Whom belong might and majesty, said: Remember your Lord inwardly, in humility and awe… (Q7:205). Indeed, no one knows the reward of that remembrance within the heart of a servant other than Allah, the Exalted.”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).