Dua 45 After every Sunnah and obligatory prayer, ask for this dua:
(Surah Ibrahim (14), Verse 40)
رَبِّ ٱجْعَلْنِى مُقِيمَ ٱلصَّلَوٰةِ وَمِن ذُرِّيَّتِى ۚ رَبَّنَا وَتَقَبَّلْ دُعَآءِ
Rabbij 'alnee muqeemas Salaati wa min zurriyyatee Rabbanaa wa taqabbal du'aaa'.
My Lord! Make me a maintainer of prayer, and my descendants [as well]. Our Lord, accept my supplication.
(Surah Ibrahim (14), Verse 40)
This is the dua of Prophet Ibrahim (AS). It should be requested after every Sunnah and obligatory prayer.