Umm Qais daughter of Mihsan reported that she came to the Messenger of Allah (ﷺ) with her child. who was not yet weaned, and she placed him in his lap; and he urinated in his (Holy Prophet's) lap. He (the Holy Prophet) did nothing more than spraying water over it.
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، زَوْجِ النَّبِيِّ صلى الله عليه وسلم أَنَّهَا قَالَتْ أُتِيَ رَسُولُ اللَّهِ صلى الله عليه وسلم بِصَبِيٍّ فَبَالَ عَلَى…
Narrated by Ā’ishah
AuthenticMuttafaq ‘alayh (Bukhari and Muslim)Sahih al-Bukhari 223
That she brought her small son, who had not yet eaten solid food, to the Messenger of Allah (ﷺ). The Messenger of Allah (ﷺ) seated him on his lap, and he (the child) urinated on his garment. So the Prophet (ﷺ) called for some water, sprinkled it over the affected area, and did not wash it.