O Allah, You are my Lord, there is none worthy of worship but You. You created me and I am your slave, and I abide to Your covenant and promise as best I can. I seek refuge in You from the evil of what I have done. I acknowledge Your favour upon me and I acknowledge my sin, so forgive me, for verily none can forgive sin except You.

References

[Sahih Bukhari - 6306]

Notes

Whoever recites this with conviction in the evening and dies during that night shall enter Paradise, and whoever recites it with conviction in the morning and dies during that day shall enter Paradise.