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:4072Abū Zakariyyā b. Abū Isḥāq And ʾAbū Bakr b. al-Ḥasan > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Muḥammad b. ʿAbdullāh b. ʿAbd al-Ḥakam > Ibn Wahb > Baḥr b. Naṣr > Quriʾ > Ibn Wahb Akhbarak Isḥāq b. Yaḥyá b. Ṭalḥah b. ʿUbaydullāh al-Taymī from his uncle ʿĪsá b. Ṭalḥah > Muṭīʿ b. al-Aswad > Ṣallá ʿUmar b. al-Khaṭṭāb Bi-al-Nnās al-Ṣubḥ Thum Rakibt

[Machine] I felt this numbness on my thigh that I didn't feel before, so I scratched it. Then he said, "By Allah, when I ate fatty food and reached old age, something comes out of me that I don't feel." Muhammad then said, "So what do I feel?" He then performed ablution, prayed the morning prayer again, and did not instruct anyone to repeat the prayer.  

البيهقي:٤٠٧٢أنبأ أَبُو زَكَرِيَّا بْنُ أَبِي إِسْحَاقَ وَأَبُو بَكْرِ بْنُ الْحَسَنِ قَالَا ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ أنبأ مُحَمَّدُ بْنُ عَبْدِ اللهِ بْنِ عَبْدِ الْحَكَمِ أنبأ ابْنُ وَهْبٍ قَالَ وَثنا بَحْرُ بْنُ نَصْرٍ قَالَ قُرِئَ عَلَى ابْنِ وَهْبٍ أَخْبَرَكَ إِسْحَاقُ بْنُ يَحْيَى بْنِ طَلْحَةَ بْنِ عُبَيْدِ اللهِ التَّيْمِيُّ عَنْ عَمِّهِ عِيسَى بْنِ طَلْحَةَ عَنْ مُطِيعِ بْنِ الْأَسْوَدِ قَالَ صَلَّى عُمَرُ بْنُ الْخَطَّابِ ؓ بِالنَّاسِ الصُّبْحَ ثُمَّ رَكِبْتُ أَنَا وَهُوَ إِلَى أَرْضِنَا فَلَمَّا جَلَسَ عَلَى رَبِيعٍ مِنْهَا يَتَوَضَّأُ مِنْهَا فَإِذَا عَلَى فَخِذِهِ احْتِلَامٌ فَقَالَ

هَذَا الِاحْتِلَامُ عَلَى فَخِذِي لَمْ أَشْعُرْ بِهِ فَحَكَّهُ ثُمَّ قَالَ صِرْتُ وَاللهِ حِينَ أَكَلْتُ الدَّسَمَ وَدَخَلْتُ فِي السِّنِّ يَخْرُجُ مِنِّي مَا لَا أَشْعُرُ بِهِ وَقَالَ مُحَمَّدٌ فَمَا أَشْعُرُ بِهِ وَاغْتَسَلَ ثُمَّ أَعَادَ صَلَاةَ الصُّبْحِ وَلَمْ يَأْمُرْ أَحَدًا بِإِعَادَةِ الصَّلَاةِ