ʿSprinkle water on the urine of a boy and wash the urine of a girlʿ Qatadah said: This is so long as they are not eating solid food; if they are eating solid food, both are to be washed.
أَنَّ رَسُولَ اللهِ ﷺ قَالَ فِي الرَّضِيعِ يُنْضَحُ بَوْلُ الْغُلامِ وَيُغْسَلُ بَوْلُ الْجَارِيَةِ قَالَ قَتَادَةُ وَهَذَا مَا لَمْ يَطْعَمَا الطَّعَامَ فَإِذَا طَعِمَا غُسِلا جَمِيعًا