Hazrat Anas (May Allah be pleased with him) said: You indulge in (bad) actions which are more insignificant to you than a hair while we considered them at the time of Messenger of Allah [SAWW](PBUH) to be great destroying sins”.
[Al-Bukhari 08, Chapter 76, Hadith # 499].
Lesson : as mentioned above in Surah Al-Muminun Ayat 75.” And though Allah had mercy on them and removed the distress which is on them, still they would obstinately persist in their transgression.” The less fear of Allah, one has the more disobedient he becomes to Him. As the fear of Allah decreases, one becomes more bold in committing sins. As the Companions of the Prophet [SAWW](PBUH) were intensely fearful of Allah, they were afraid of committing even very minor sins.