Imam Tirmidzi : 2421

حَدَّثَنَا هَنَّادٌ حَدَّثَنَا أَبُو مُعَاوِيَةَ عَنْ الْأَعْمَشِ عَنْ عُمَارَةَ بْنِ عُمَيْرٍ عَنْ الْحَارِثِ بْنِ سُوَيْدٍ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْعُودٍ بِحَدِيثَيْنِ أَحَدِهِمَا عَنْ نَفْسِهِ وَالْآخَرِ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ عَبْدُ اللَّهِ إِنَّ الْمُؤْمِنَ يَرَى ذُنُوبَهُ كَأَنَّهُ فِي أَصْلِ جَبَلٍ يَخَافُ أَنْ يَقَعَ عَلَيْهِ وَإِنَّ الْفَاجِرَ يَرَى ذُنُوبَهُ كَذُبَابٍ وَقَعَ عَلَى أَنْفِهِ قَالَ بِهِ هَكَذَا فَطَارَ

Narrated to us [Hannad] has told us [Abu Mu'awiyah] from [Al A'masy] from [Umarah bin 'Umair] from [Al Harith bin Suwaid] has told us [Abdullah bin Mas'ud] two hadiths, one of them from him and the other from the prophetpeace be upon him, said Abdullah: Indeed, the believer judges his sins as if he were under a mountain, he is worried about that mountain tearing him down, instead a vile person judges his sins like a fly stuck to his nose. He said, "Ah, just like this, then flew away.