The boys used to be brought to the Prophet ﷺ and he used to invoke for Allah's blessing upon them. Once an infant was brought to him and it urinated on his clothes. He asked for water and poured it over the place of the urine and did not wash his clothes.  

كَانَ النَّبِيُّ ﷺ يُؤْتَى بِالصِّبْيَانِ فَيَدْعُو لَهُمْ فَأُتِيَ بِصَبِيٍّ فَبَالَ عَلَى ثَوْبِهِ فَدَعَا بِمَاءٍ فَأَتْبَعَهُ إِيَّاهُ وَلَمْ يَغْسِلْهُ  

I brought my young son, who had not started eating (ordinary food) to Messenger of Allah ﷺ who took him and made him sit in his lap. The child urinated on the garment of the Prophet, so he asked for water and poured it over the soiled (area) and did not wash it.  

أَنَّهَا أَتَتْ بِابْنٍ لَهَا صَغِيرٍ لَمْ يَأْكُلِ الطَّعَامَ إِلَى رَسُولِ اللَّهِ ﷺ فَأَجْلَسَهُ رَسُولُ اللَّهِ ﷺ فِي حِجْرِهِ فَبَالَ عَلَى ثَوْبِهِ فَدَعَا بِمَاءٍ فَنَضَحَهُ وَلَمْ يَغْسِلْهُ  

I brought my young son, who had not started eating (ordinary food) to Messenger of Allah ﷺ who took him and made him sit in his lap. The child urinated on the garment of the Prophet, so he asked for water and poured it over the soiled (area) and did not wash it.  

أَنَّهَا أَتَتْ بِابْنٍ لَهَا صَغِيرٍ لَمْ يَأْكُلِ الطَّعَامَ إِلَى رَسُولِ اللَّهِ ﷺ فَأَجْلَسَهُ رَسُولُ اللَّهِ ﷺ فِي حِجْرِهِ فَبَالَ عَلَى ثَوْبِهِ فَدَعَا بِمَاءٍ فَنَضَحَهُ وَلَمْ يَغْسِلْهُ