Sahih al-Bukhari 6664
Sahih al-Bukhari · Book 83: Oaths and Vows · If someone does something against his oath due to forgetfulness
Narrated Abu Huraira:
حَدَّثَنَا خَلاَّدُ بْنُ يَحْيَى ، حَدَّثَنَا مِسْعَرٌ ، حَدَّثَنَا قَتَادَةُ ، حَدَّثَنَا زُرَارَةُ بْنُ أَوْفَى ، عَنْ أَبِي هُرَيْرَةَ ، يَرْفَعُهُ قَالَ " إِنَّ اللَّهَ تَجَاوَزَ لأُمَّتِي عَمَّا وَسْوَسَتْ أَوْ حَدَّثَتْ بِهِ أَنْفُسَهَا، مَا لَمْ تَعْمَلْ بِهِ أَوْ تَكَلَّمْ " .
The Prophet (ﷺ) said, "Allah forgives my followers those (evil deeds) their souls may whisper or suggest to them as long as they do not act (on it) or speak."