Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:19967Abū al-Ḥusayn b. Bishrān > Ismāʿīl b. Muḥammad al-Ṣaffār > al-Ḥasan b. ʿAlī b. ʿAffān > Ibn Numayr > ʿUbaydullāh b. ʿUmar > Nāfiʿ > Ibn ʿUmar

[Machine] He may repent, and perhaps he may deny [his sin] after he repents.  

البيهقي:١٩٩٦٧أَخْبَرَنَا أَبُو الْحُسَيْنِ بْنُ بِشْرَانَ أنبأ إِسْمَاعِيلُ بْنُ مُحَمَّدٍ الصَّفَّارُ ثنا الْحَسَنُ بْنُ عَلِيِّ بْنِ عَفَّانَ ثنا ابْنُ نُمَيْرٍ عَنْ عُبَيْدِ اللهِ بْنِ عُمَرَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ ؓ أَنَّهُ كَانَ رُبَّمَا كَفَّرَ يَمِينَهُ قَبْلَ أَنْ

يَحْنِثَ وَرُبَّمَا كَفَّرَ بَعْدَمَا يَحْنِثُ