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).

1. It is permissible to inform someone that you love him for the sake of Allah.
2. It is recommended to recite this supplication after every obligatory and voluntary prayer.
3. This brief supplication comprises the demands of this worldly life and the Hereafter.
4. Exhorting one another to the truth, mutual advice, and cooperation in goodness and righteousness are among the benefits of love for the sake of Allah.
5. At-Taybi said: Remembering Allah is an introduction to relief in the heart, thanking Him is a means of attaining blessings, and the required excellent manner in worship is to be free of whatever distracts one from Allah Almighty.

سنن أبي داود (2/ 630) (1522). سنن النسائي (3/ 53) (1303). مسند أحمد (36/ 429) (22119). بهجة الناظرين شرح رياض الصالحين، لسليم الهلالي (1/ 450). تطريز رياض الصالحين، لفيصل آل مبارك (ص259). شرح رياض الصالحين، لابن عثيمين (3/ 264). كنوز رياض الصالحين، لمجموعة من الباحثين (6/ 284). نزهة المتقين شرح رياض الصالحين، لمجموعة من الباحثين (1/ 353).