Narrated Some Companions of the Prophet:

AbuSalih reported on the authority of some Companions of the Prophet ﷺ: The Prophet ﷺ said to a person: what do you say in prayer?

He replied: I first recite tashahhud (supplication recited in sitting position), and then I say: O Allah, I ask Thee for Paradise, and I seek refuge in Thee from Hell-Fire, but I do not understand your sound and the sound of Mu'adh (what you say or he says in prayer). The Prophet ﷺ said: We too go around it (paradise and Hell-fire).

حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا حُسَيْنُ بْنُ عَلِيٍّ، عَنْ زَائِدَةَ، عَنْ سُلَيْمَانَ، عَنْ أَبِي صَالِحٍ، عَنْ بَعْضِ، أَصْحَابِ النَّبِيِّ ﷺ قَالَ قَالَ النَّبِيُّ ﷺ لِرَجُلٍ " كَيْفَ تَقُولُ فِي الصَّلاَةِ " . قَالَ أَتَشَهَّدُ وَأَقُولُ اللَّهُمَّ إِنِّي أَسْأَلُكَ الْجَنَّةَ وَأَعُوذُ بِكَ مِنَ النَّارِ أَمَا إِنِّي لاَ أُحْسِنُ دَنْدَنَتَكَ وَلاَ دَنْدَنَةَ مُعَاذٍ . فَقَالَ النَّبِيُّ ﷺ " حَوْلَهَا نُدَنْدِنُ " .