I said: "O Messenger of Allah! Inform me about a matter that I may hold fast to." He said: 'Say: My Lord is Allah, then be steadfast.' I said: "O Messenger of Allah! What do you fear most for me?" So he took hold of his tongue and said: 'This.'"
قُلْتُ يَا رَسُولَ اللَّهِ حَدِّثْنِي بِأَمْرٍ أَعْتَصِمُ بِهِ قَالَ قُلْ رَبِّيَ اللَّهُ ثُمَّ اسْتَقِمْ قُلْتُ يَا رَسُولَ اللَّهِ مَا أَخْوَفُ مَا تَخَافُ عَلَىَّ فَأَخَذَ بِلِسَانِ نَفْسِهِ ثُمَّ قَالَ هَذَا