‘Abdullah ibn ‘Umar reports that the Messenger of Allah, upon whom be peace, said: “Whoever seeks the protection of Allah, give him protection. Whoever asks you in the name of Allah, grant him refuge. Whoever does a good deed to you, reward him and if you do not find anything, invoke Allah on his behalf until you know that he has been rewarded.” This is related by Abu Dawud and an-Nasa’i with an authentic chain.
Ashab ibn Qais reported that the Messenger of Allah, upon whom be peace, is reported to have said: “Whoever does not thank people, does not thank Allah.” This is related by Ahmad with a trustworthy chain.
Usamah ibn Zaid adds that the Messenger of Allah, upon whom be peace, said: “To whom a good deed is done and who says to its doer: ‘May Allah reward you with goodness,’ also reaps the reward.” This is related by at-Tirmizhi.
Allah is the Most Knowing, and all praise is due to the Lord of the Worlds.