The Book of Virtue, Enjoining Good Manners, and Joining of the Ties of Kinship
Ṣaḥīḥ Muslim 6681
أَغْفِرَ لِفُلاَنٍ فَإِنِّي قَدْ غَفَرْتُ لِفُلاَنٍ وَأَحْبَطْتُ عَمَلَكَ
aghfira lifulānin fa-innī qad ghafartu lifulānin wa-aḥbaṭtu ʿamalaka
Transliteration generated from the Arabic vowel marks
The full narration
Jundub reported that Allah's Messenger (ﷺ) stated that a person said:Allah would not forgive such and such (person). Thereupon Allah the Exalted and Glorious, said: Who is he who adjures about Me that I would not grant pardon to so and so; I have granted pardon to so and so and blotted out his deeds (who took an oath that I would not grant pardon to him)
Source
Ṣaḥīḥ Muslim · 6681
Ṣaḥīḥ
- Agreed upon as authentic (al-Bukhārī / Muslim)