never fail to say after each prayer: Allāhumma a‘inni ‘ala dhikrika wa shukrika wa husni ‘ibādatik (O Allah, help me remember You, thank You, and excellently worship You)

The Prophet (may Allah's peace and blessings be upon him) took Mu‘ādh (may Allah be pleased with him) by the hand and said to him: By Allah, I do love you, and I advise you, O Mu‘ādh, never fail to say after each prayer: (O Allah, help me remember You) in every word and deed that brings me closer to an act of obedience; (thank You) for bestowing favors and warding off misfortunes; (and excellently worship You) by being fully sincere to Allah and following the Prophet (may Allah's peace and blessings be upon him).