“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…
" قُلْ رَبِّيَ اللَّهُ ثُمَّ اسْتَقِمْ " . قُلْتُ يَا رَسُولَ اللَّهِ مَا أَكْثَرُ مَا تَخَافُ عَلَىَّ فَأَخَذَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ بِلِسَانِ نَفْسِهِ ثُمَّ قَالَ " هَذَا "