You are doing things that appear to your eyes finer than a hair, yet during the time of the Messenger of Allah ﷺ we used to count them among the destructive sins.
إنكم لتعملون أعمالا هي أدق في أعينكم من الشعر كنا نعدها على عهد رسول الله ﷺ من الموبقات.
Ahmad (10995) narrated it from Abdul-Malik bin Amr, who said, Abbad, meaning Ibn Rashid, narrated to us from Dawud bin Abu Hind from Abu Nadra from Abu Saeed, and he mentioned it.Its isnad is hasan because of Abbad bin Rashid, for his hadith is hasan.