Fiqh 1.11 a: The urine and stools of animals that are permissible to eat
Said Anas, "A group of people from the tribes of Ukul or 'Uraina came to Madinah and became ill in their stomach. The Prophet ordered them to get a milking she-camel and drink a mixture of its milk and urine." This hadith is related by Ahmad, al-Bukhari and Muslim and points to a camel's urine as being pure. Therefore, by analogy, other permissible animals' urine may also be considered pure. Says Ibn al-Munzhir, "Those who claim that that was permissible only for those people are incorrect. Specification is only confirmed by some specific proof." He also says, "The scholars permit, without any objection, the sale of sheep's stools and the use of camel's urine in their medicine, both in the past and in the present, again without any objection. This shows that they are considered pure." Says ash-Shaukani, "Apparently, the urine and stools of every living animal permissible to eat is pure." There is nothing to prove otherwise.