Mishkat al-Masabih 3 Purification كتاب الطهارة 214

وَعَنِ الْبَرَاءِ بْنِ عَازِبٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ:: «لَا بَأْسَ بِبَوْلِ مَا يُؤْكَلُ لَحْمُهُ» وَفِي رِوَايَةِ جَابِرٍ قَالَ: «مَا أُكِلَ لَحْمُهُ فَلَا بَأْس ببوله» . رَوَاهُ أَحْمد وَالدَّارَقُطْنِيّ

Al-Bara’ reported God’s messenger as saying, “There is no harm in the urine of an animal whose flesh may be eaten.” In a version of Jabir’s he said, “If an animal’s flesh may be eaten, there is no harm in its urine.” Ahmad and Daraqutni transmitted it.