Chapter: The ruling on the urine of a nursing infant and how to wash it
Umm Qais daughter of Mihsan reported that she came to the Messenger of Allah ( صلی اللہ علیہ وسلم ) 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.
Authentic