[Machine] I used to serve the Prophet ﷺ , so whenever he wanted to perform ablution, he would say, "Bring me my qutwa (a container for water) so that I may pour water over my body." Then I would bring it to him and cover him with a cloth. Then he would call for Hasan or Husain (his grandsons), and they would sit on his lap. I would then wash him while he said, "Wash him from the urine of the little girl and sprinkle him with the urine of the little boy." Abu Dawood said, "This refers to Abu al-Zar'a, which means Yahya bin al-Walid. Ahmad bin Hanbal narrated this from Abdur Rahman bin Mahdi, and he said in the Hadith, "Sprinkle him with urine."
كُنْتُ أَخْدُمُ النَّبِيَّ ﷺ فَكَانَ إِذَا أَرَادَ أَنْ يَغْتَسِلَ قَالَ وَلِّنِي قَفَاكَ فَأُوَلِّيهِ قَفَائِي فَأَسْتُرُهُ فَأُتِيَ بِحَسَنٍ أَوْ حُسَيْنٍ فَبَالَ عَلَى صَدْرِهِ فَجِئْتُ أَغْسِلُهُ فَقَالَ يُغْسَلُ مِنْ بَوْلِ الْجَارِيَةِ وَيُرَشُّ مِنْ بَوْلِ الْغُلَامِ قَالَ أَبُو دَاوُدَ وَهُوَ أَبُو الزَّعْرَاءِ يَعْنِي يَحْيَى بْنَ الْوَلِيدِ وَرَوَاهُ أَحْمَدُ بْنُ حَنْبَلٍ عَنْ عَبْدِ الرَّحْمَنِ بْنِ مَهْدِيٍّ وَقَالَ فِي الْحَدِيثِ فَقَالَ رُشُّوهُ رَشًّا فَإِنَّهُ يُغْسَلُ بَوْلُ الْجَارِيَةِ وَيُرَشُّ بَوْلُ الْغُلَامِ