Majma al-Zawaid — Hadith 1134

Tha'labah bin Abbad reports from his father; he says: I do not know how many times the Prophet (peace and blessings be upon him) said this, an odd or an even number of times? He (peace and blessings be upon him) said: "When a servant performs ablution thoroughly, washes his face until the water flows over his chin, then washes both his arms until the water flows over his elbows, then washes his feet until the water flows over his ankles, then stands and offers the prayer, Allah Almighty forgives his past sins."
Imam al-Tabarani recorded this report in al-Mu'jam al-Kabir. He also recorded it through another chain and said: it is narrated from Tha'labah bin Imarah. He says: Ishaq al-Dabari narrated it in this way from Imam Abd al-Razzaq, and he erred regarding the narrator's name, because the correct name is "Tha'labah bin Abbad". The narrators of this report have been declared trustworthy.