O Allaah, I ask of Your pleasure and for Paradise

اللَّهُمَّ إِنِّي أَسْأَلُكَ رِضَاكَ وَالجَنَّةَ ، وَأَعُوذُ بِكَ مِنْ سَخَطِكَ وَالنَّارِ

Allaahumma innee as-aluka  Ridaak wal Jannah
wa Audhubika min sakhatik wan-naar

O Allaah, I ask of Your pleasure and for Paradise,and I seek refuge from Your displeasure and from the Hellfire.

Taken from the Fatawaa of our Shaykh, Allaama,
The Mufti of the Kingdom of Saudi Arabia, Abdul Azeez bin Abdullaah Bin Baz

Translated by Abbas Abu Yahya
https://followingthesunnah.wordpress.com/2015/06/30/the-best-dua-supplication