that the Messenger of Allah ﷺ said: "When Allah drowned Fir'awn he said: 'I believe that there is no god except the One that the children of Isra'il believe in.' So Jibrail said: 'O Muhammad! If you could only have seen me, while I was taking (the mud) from the sea, and filling his mouth out of fear that the mercy would reach him.'" (Using translation from Tirmidhī 3107)
قَالَ رَسُولُ اللهِ ﷺ لَمَّا قَالَ فِرْعَوْنُ {آمَنْتُ أَنَّهُ لَا إِلَهَ إِلا الَّذِي آمَنَتْ بِهِ بَنُو إِسْرَائِيلَ} [يونس 90] قَالَ قَالَ لِي جِبْرِيلُ يَا مُحَمَّدُ لَوْ رَأَيْتَنِي وَقَدْ أَخَذْتُ حَالًا مِنْ حَالِ الْبَحْرِ فَدَسَّيْتُهُ فِي فِيهِ مَخَافَةَ أَنْ تَنَالَهُ الرَّحْمَةُ