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:4074ʿAlī b. ʿUmar al-Ḥāfiẓ > Abū ʿUbayd al-Qāsim b. Ismāʿīl > Muḥammad b. Ḥassān al-Azraq > ʿAbd al-Raḥman b. Mahdī > ʿAlī b. ʿAbdullāh b. Mubashhir > Aḥmad b. Sinān > ʿAbd al-Raḥman > Hushaym > Khālid b. Salamah > Muḥammad b. ʿAmr b. al-Ḥārith b. Abū Ḍirār

[Machine] I grew up, by Allah, and indeed I used to see myself in a state of janabah (ritual impurity), then I wouldn't know, then I would repeat it without being instructed to do so. Abdul Rahman said, I asked Sufyan about it and he said, I heard it from Khalid ibn Salamah, and I cannot recall it as I would like. Abdul Rahman said, and this is something upon which there is consensus, that janabah should be repeated and they should not repeat what they do not know to be different. Ali said, and Abu Ubaid said, meaning in his narration, I heard it from Khalid ibn Salamah, and I do not remember it exactly, and he did not add anything to this.  

البيهقي:٤٠٧٤وَأنبأ أَبُو بَكْرٍ وَأَبُو عَبْدِ الرَّحْمَنِ قَالَا أنبأ عَلِيُّ بْنُ عُمَرَ الْحَافِظُ ثنا أَبُو عُبَيْدٍ الْقَاسِمُ بْنُ إِسْمَاعِيلَ ثنا مُحَمَّدُ بْنُ حَسَّانَ الْأَزْرَقُ ثنا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ قَالَ وَثنا عَلِيُّ بْنُ عَبْدِ اللهِ بْنِ مُبَشِّرٍ ثنا أَحْمَدُ بْنُ سِنَانٍ ثنا عَبْدُ الرَّحْمَنِ ثنا هُشَيْمٌ عَنْ خَالِدِ بْنِ سَلَمَةَ عَنْ مُحَمَّدِ بْنِ عَمْرِو بْنِ الْحَارِثِ بْنِ أَبِي ضِرَارٍ أَنَّ عُثْمَانَ بْنَ عَفَّانَ ؓ صَلَّى بِالنَّاسِ وَهُوَ جُنُبٌ فَلَمَّا أَصْبَحَ نَظَرَ فِي ثَوْبِهِ احْتِلَامًا فَقَالَ

كَبِرْتُ وَاللهِ إِنِّي لَأَرَانِي جُنُبًا ثُمَّ لَا أَعْلَمُ ثُمَّ أَعَادَ وَلَمْ يَأْمُرْهُمْ أَنْ يُعِيدُوا قَالَ عَبْدُ الرَّحْمَنِ سَأَلْتُ سُفْيَانَ عَنْهُ فَقَالَ قَدْ سَمِعْتُهُ مِنْ خَالِدِ بْنِ سَلَمَةَ وَلَا أَجِيءُ بِهِ كَمَا أُرِيدُ قَالَ عَبْدُ الرَّحْمَنِ وَهَذَا الْمُجْمَعُ عَلَيْهِ الْجُنُبُ يُعِيدُ وَلَا يُعِيدُونَ مَا أَعْلَمُ فِيهِ اخْتِلَافًا قَالَ عَلِيٌّ وَقَالَ أَبُو عُبَيْدٍ يَعْنِي فِي رِوَايَتِهِ قَدْ سَمِعْتُهُ مِنْ خَالِدِ بْنِ سَلَمَةَ وَلَا أَحْفَظُهُ وَلَمْ يَزِدْ عَلَى هَذَا