A Concession With Regard To That
باب الرُّخْصَةِ فِي ذَلِكَ
Sunan an-Nasa'i, Book of Purification(view book)
Sunan an-Nasa'i 239
It was narrated that Humaid bin 'Abdur-Rahman said:
"I met a man who accompanied the Prophet ﷺ as Abu Hurairah (may Allah be pleased with him), accompanied him for four years. He said: 'The Messenger of Allah ﷺ forbade any one of us to comb his hair each day,[1] or to urinate in the place where he performs Ghusl, or for a man to perform Ghusl using the leftover water of a women, or a woman to perform Ghusl using the leftover water of a man - they should scoop it out together.'"
[1] It is said this is to prevent him from making his physical appearance his main aim.
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ دَاوُدَ الأَوْدِيِّ، عَنْ حُمَيْدِ بْنِ عَبْدِ الرَّحْمَنِ، قَالَ لَقِيتُ رَجُلاً صَحِبَ النَّبِيَّ ﷺ كَمَا صَحِبَهُ أَبُو هُرَيْرَةَ - رضى الله عنه - أَرْبَعَ سِنِينَ قَالَ نَهَى رَسُولُ اللَّهِ ﷺ أَنْ يَمْتَشِطَ أَحَدُنَا كُلَّ يَوْمٍ أَوْ يَبُولَ فِي مُغْتَسَلِهِ أَوْ يَغْتَسِلَ الرَّجُلُ بِفَضْلِ الْمَرْأَةِ وَالْمَرْأَةُ بِفَضْلِ الرَّجُلِ وَلْيَغْتَرِفَا جَمِيعًا .