“I said: ‘O Messenger of Allah, tell me of something that I can adhere to.’ He said: ‘Say: “Allah is my Lord,” then stand straight (adhere steadfastly to Islam).’ He said: ‘O Messenger of Allah, what is the thing that you fear most for me?’ The Messenger of Allah ﷺ took hold of his own tongue, then he said: ‘This.’” (Using translation from Ibn Mājah 3972)
قُلْتُ يَا رَسُولَ اللهِ حَدِّثْنِي بِأَمْرٍ أَعْتَصِمُ بِهِ قَالَ قُلْ رَبِّيَ اللهُ ثُمَّ اسْتَقِمْ قَالَ قُلْتُ يَا رَسُولَ اللهِ مَا أَكْبَرُ مَا تَخَافُ عَلَيَّ؟ قَالَ فَأَخَذَ رَسُولُ اللهِ ﷺ بِلِسَانِ نَفْسِهِ ثُمَّ قَالَ هَذَا قَالَ يَزِيدُ فِي حَدِيثِهِ بِطَرْفِ لِسَانِ نَفْسِهِ