حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ بْنِ مُبَشِّرٍ ، وَأَحْمَدُ بْنُ عَبْدِ اللَّهِ بْنِ مُحَمَّدٍ الْوَكِيلُ ، قَالا : نا عَمْرُو بْنُ عَلِيٍّ ، ثنا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ ، نا يَحْيَى بْنُ الْوَلِيدِ ، حَدَّثَنِي مُحِلُّ بْنُ خَلِيفَةَ الطَّائِيُّ ، حَدَّثَنِي أَبُو السَّمْحِ ، قَالَ : كُنْتُ أَخْدُمُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، فَإِذَا أَرَادَ أَنْ يَغْتَسِلَ قَالَ : " وَلِّنِي قَفَاكَ " ، فَأُوَلِّيهِ قَفَائِي ، وَأَنْشُرُ الثَّوْبَ ، يَعْنِي أَسْتُرُهُ ، فَأُتِيَ بِحَسَنٍ أَوْ حُسَيْنٍ فَبَالَ عَلَى صَدْرِهِ ، فَدَعَا بِمَاءٍ فَرَشَّهُ عَلَيْهِ ، وَقَالَ : " هَكَذَا يُصْنَعُ يُرَشُّ مِنَ الذَّكَرِ وَيُغْسَلُ مِنَ الأُنْثَى " .
Sayyiduna Abu Samh (may Allah be pleased with him) narrates: I used to serve the Noble Prophet (peace and blessings be upon him). When he wanted to perform ghusl (ritual bath), he would say to me: "Turn your face away." So I would turn my face away and provide a screen. (Once, after he had performed ghusl,) either Imam Hasan (may Allah be pleased with him) or perhaps Imam Husayn (may Allah be pleased with him) was brought to him, and he urinated on the Prophet’s chest. The Noble Prophet (peace and blessings be upon him) called for water and sprinkled it over the area, and said: "If a boy urinates, it should be sprinkled in this way, and if a girl urinates, it should be washed."