﴿ وَقُل رَّبِّ أَدْخِلْنِى مُدْخَلَ صِدْقٍۢ وَأَخْرِجْنِى مُخْرَجَ صِدْقٍۢ وَٱجْعَل لِّى مِن لَّدُنكَ سُلْطَٰنًۭا نَّصِيرًۭا ﴾

“And say [in thy prayer]: "O my Sustainer! Cause me to enter [upon whatever I may do] in a manner. true and sincere, and cause me to leave [it] in a manner true and sincere, and grant me, out of Thy grace, sustaining strength!"”

Please check ayah 17:81 for complete tafsir.