Fathwa - The sun does not remove impurifications

Question:
I have small children, whom I carry, and they urinate on my clothes,
soI spread them out in the sun, until it is dry, then I pray in it. Is
my prayer acceptable or not?
Answer:
As for the urine of the boy, it is sufficient to sprinkle it with
water if the child does not eat food, based upon the narration of Umm
Qais bint Mihsan, may Allaah be pleased with her. She brought her
small son, who had not yet begun eating, to the Messengerof
Allaah(Sallallaahu alayhi wasallam)and he sat him in a room, and he
urinated on his garment, so he called forwater and he sprinkled it,
without washing it. [Al-Bukhari no. 233 and Muslim no. 278]
The meaning ofNadh(the word used in theHadith) is to wet with water,
even if it does notrun off to the ground, and it does not require
soaking. It is understoodfrom this that if the babyhas eaten food, the
urine must be washed out. As for the urine of the girl, it must be
washed out, based uponthe narration of Lubabah bint Al-Harith, who
said:
"Al-Husain bin 'Ali was inthe room of the Prophet(Sallallaahu alayhi
wasallam)and he urinated upon him(Sallallaahu alayhi wasallam), so I
said: 'Wear another garment, and give me yourIzarwhile I wash it.' He
said:
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"Only the urine of the girls must be washed, and the boy's urine may
be sprinkled." [Abu Dawud no. 375]
This is the guidance of the Messenger(Sallallaahu alayhi
wasallam)regarding the ruling on the urine of the boy and the girl.
From what the questioner mentioned about drying his garment in the sun
on which the child has urinated and then praying in it when it is dry,
it is clear that the sun does not purify it and that prayer in it is
not correct, as we have said.