(8) باب الرُّخْصَةِ فِيهِ مَرَّةً
Abu Salamah bin 'Abdur-Rahman said:
"Mu'aiqib told me that the Messenger of Allah (ﷺ) said: 'If you have to do that, then do it only once.'" (FR)
Reference (FR): Sunan an-Nasa'i 1192 (FR)
In-book reference (FR): Book 13, Hadith 14 (FR)
English translation (FR): Vol. 2, Book 13, Hadith 1193 (FR)