"The Messenger of Allah forbade (eating) animals that had been taken as targets, the milk of Al-Jallalah (animals that eat dung), and drinking directly from water skins."  

نَهَى رَسُولُ اللَّهِ ﷺ عَنِ الْمُجَثَّمَةِ وَلَبَنِ الْجَلاَّلَةِ وَالشُّرْبِ مِنْ فِي السِّقَاءِ