وَإِنَّ لَكُم فِي الأَنعامِ لَعِبرَةً ۖ نُسقيكُم مِمّا في بُطونِهِ مِن بَينِ فَرثٍ وَدَمٍ لَبَنًا خالِصًا سائِغًا لِلشّارِبينَ

There is a lesson for you in livestock: We give you drink from within them. From what’s in their bellies, between excretions and blood, we produce for you pure milk, pleasant for those who drink it.