وَإِنَّ لَكُمْ فِي الْأَنْعَامِ لَعِبْرَةً نُّسْقِيكُم مِّمَّا فِي بُطُونِهِ مِن بَيْنِ فَرْثٍ وَدَمٍ لَّبَنًا خَالِصًا سَائِغًا لِّلشَّارِبِينَ

There is indeed a lesson for you in the cattle: We give you a drink pleasant to those who drink, pure milk, which is in their bellies, between [intestinal] waste and blood.