اللَّهُمَّ أَعِنِّي عَلَى ذِكْرِكَ، وَشُكْرِكَ، وَحُسْنِ عِبَادَتِكَ

O Allāh, help me to remember You, to thank You, and to worship You in the best of manners.

Reference: Abū Dāwud (#1522, 2/86) and al-Nasāʾī (3/53). Al-Albānī authenticated it in Ṣaḥīḥ Abī Dāwud (1/284).