Sunan an-Nasa'i #852 · The Book of Leading the Prayer (Al-Imamah)

Sunan an-Nasa'iIt was narrated from Hisham bin 'Urwah from his father that 'Abdullih bin Arqam used to lead his companions in prayer. The time for prayer came one day and he went to relieve himself then he came back and said
Sunan an-Nasa'i · Book 10 · The Book of Leading the Prayer (Al-Imamah)
Sunan an-Nasa'i · كتاب 10 · كتاب الإمامة
أَخْبَرَنَا قُتَيْبَةُ، عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، أَنَّ عَبْدَ اللَّهِ بْنَ أَرْقَمَ، كَانَ يَؤُمُّ أَصْحَابَهُ فَحَضَرَتِ الصَّلاَةُ يَوْمًا فَذَهَبَ لِحَاجَتِهِ ثُمَّ رَجَعَ فَقَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ ‏
"‏ إِذَا وَجَدَ أَحَدُكُمُ الْغَائِطَ فَلْيَبْدَأْ بِهِ قَبْلَ الصَّلاَةِ ‏"‏ ‏.‏
Reference : Sunan an-Nasa'i 852In-book reference : Book 10, Hadith 76