[Machine] Everything from animals, their urine is washed. As for the Hadith of Anas in the story of the Uraniyyin, the Prophet ﷺ ordered them to stay with the camels and drink their milk and urine. Ash-Shafi'i, may Allah have mercy on him, said that this is allowed in cases of necessity, just as eating dead animals is allowed in cases of necessity, and the ruling of necessities is different from other rulings. We mention it, if Allah wills, in its place in the book.  

كُلُّ شَيْءٍ مِنَ الدَّوَابِّ فَإِنَّ بَوْلَهُ يُغْسَلُ وَأَمَّا حَدِيثُ أَنَسٍ فِي قِصَّةِ الْعُرَنِيِّينِ فَإِنَّ النَّبِيَّ ﷺ أَمَرَهُمْ أَنْ يَكُونُوا فِي الْإِبِلِ وَيَشْرَبُوا مِنْ أَلْبَانِهَا وَأَبْوَالِهَا فَقَدْ قَالَ الشَّافِعِيُّ رَحِمَهُ اللهُ هَذَا عَلَى الضَّرُورَةِ كَمَا أُجِيزَ عَلَى الضَّرُورَةِ أَكْلُ الْمَيْتَةِ وَحُكْمُ الضَّرُورَاتِ مُخَالِفٌ لِغَيْرِهِ وَنَحْنُ نَذْكُرُهُ إِنْ شَاءَ اللهُ تَعَالَى فِي مَوْضِعِهِ مِنَ الْكِتَابِ