Sunan an-Nasa'i, Book 4, Hadith 53 (In-Book) ⓘ
It was narrated from Busrah bin Safwan that the Prophet said: "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.
أَخْبَرَنَا إِسْحَاقُ بْنُ مَنْصُورٍ، قَالَ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، قَالَ أَخْبَرَنِي أَبِي، عَنْ بُسْرَةَ بِنْتِ صَفْوَانَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم 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 .
also referenced under: Hadith 447 (Reference) & Volume 1, Book 4, Hadith 448 (DarusSalam)