[Machine] O Messenger of Allah, which deeds are the best? The Messenger of Allah protruded his tongue and placed his finger on it. Then Mu'adh said, "O Messenger of Allah, will we be held accountable for what we say and it will be written against us?" The Messenger of Allah struck the shoulder of Mu'adh several times and said, "May your mother be bereaved of you, O Mu'adh! Is anything more effective in leading people to Hellfire on their faces - or he said, on their noses - than the harvest of their tongues?"  

يَا رَسُولَ اللهِ أَيُّ الْأَعْمَالِ أَفْضَلُ؟ قَالَ فَأَخْرَجَ رَسُولُ اللهِ ﷺ لِسَانَهُ ثُمَّ وَضَعَ عَلَيْهِ إِصْبَعَهُ فَاسْتَرْجَعَ مُعَاذٌ فَقَالَ يَا رَسُولَ اللهِ أَنُؤَاخَذُ بِكُلِّ مَا نَقُولُ وَيُكْتَبُ عَلَيْنَا؟ قَالَ فَضَرَبَ رَسُولُ اللهِ ﷺ مَنْكِبَ مُعَاذٍ مَرَّاتٍ وَقَالَ «ثَكِلَتْكَ أُمُّكَ يَا ابْنَ أُمِّ مُعَاذٍ وَهَلْ يَكُبُّ النَّاسَ عَلَى مَنَاخِرِهِمْ فِي نَارِ جَهَنَّمَ إِلَّا حَصَائِدُ أَلْسِنَتِهُمْ؟»