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.
nasai:447Isḥāq b. Manṣūr > Yaḥyá b. Saʿīd > Hishām b. ʿUrwah from my father > Busrah b. Ṣafwān

"Whoever touches his penis, he should not perform Salah until he performs Wudu'." Abu 'Abdur-Rahman (An-Nasa'i) said: Hisham bin 'Urwah did not hear this Hadith from his father.  

النسائي:٤٤٧أَخْبَرَنَا إِسْحَاقُ بْنُ مَنْصُورٍ قَالَ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ عَنْ هِشَامِ بْنِ عُرْوَةَ قَالَ أَخْبَرَنِي أَبِي عَنْ بُسْرَةَ بِنْتِ صَفْوَانَ

أَنَّ النَّبِيَّ ﷺ قَالَ مَنْ مَسَّ ذَكَرَهُ فَلاَ يُصَلِّي حَتَّى يَتَوَضَّأَ قَالَ أَبُو عَبْدِ الرَّحْمَنِ هِشَامُ بْنُ عُرْوَةَ لَمْ يَسْمَعْ مِنْ أَبِيهِ هَذَا الْحَدِيثَ وَاللَّهُ سُبْحَانَهُ وَتَعَالَى أَعْلَمُ