Narrated by Abu Huraira (RA): He said: 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:

اَللَّهُمَّ إِنِّي أَسْأَلُكَ الْجَنَّةَ وَأَعُوْذُ بِكَ مِنَ النَّارِ

Allaahumma 'innee 'as'alukal-jannata wa 'a'oodhu bika minan-naar

O Allah, I ask You for Paradise and seek Your protection from the Fire. I can't recite dua as beautifully as you do, not even as Mu'adh! "Then the Prophet (ﷺ) said, "Our dua also carries meaning close to it!"

Reference: Sahih (Albani). Ibn Majah 3846