Al-Kāfi - Volume 3 > Urine Comes in Contact with One’s Clothes or Body
Hadith #6

6ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ حَمَّادٍ عَنِ الْحَلَبِيِّ قَالَ سَأَلْتُ أَبَا عَبْدِ الله (عَلَيْهِ الْسَّلام) عَنْ بَوْلِ الصَّبِيِّ قَالَ تَصُبُّ عَلَيْهِ الْمَاءَ وَإِنْ كَانَ قَدْ أَكَلَ فَاغْسِلْهُ غَسْلاً وَالْغُلاَمُ وَالْجَارِيَةُ فِي ذَلِكَ شَرَعٌ سَوَاءٌ.

6. Ali ibn Ibrahim has narrated from his father from ibn abu ‘Umayr from Hammad from al-Halabiy who has said the following: “I once asked abu ‘Abd Allah, ‘Alayhi al-Salam, about the urine of a child. He (the Imam) said, ‘You must just pour water on it but if the child eats food, wash it clean, and a baby boy or baby girl are the same.’”