It is narrated from Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him), he says: The Messenger of Allah (peace and blessings be upon him) met me and said: O Mu'adh! I love you. I said: O Messenger of Allah! By Allah, I also love you. The Messenger of Allah (peace and blessings be upon him) said: I advise you with a few words, say these words at the end of every prayer: "O Allah! Help me to remember You, to thank You, and to worship You in the best manner."