النحل — An-Nahl Ayat 66
وَاِنَّ لَكُمْ فِى الْاَنْعَامِ لَعِبْرَةً ۚ نُسْقِيْكُمْ مِّمَّا فِيْ بُطُوْنِهٖ مِنْۢ بَيْنِ فَرْثٍ وَّدَمٍ لَّبَنًا خَالِصًا سَاۤىِٕغًا لِّلشّٰرِبِيْنَ
Wa inna lakum fil-an‘āmi la‘ibrah(tan), nusqīkum mimmā fī buṭūnihī mim baini farṡiw wa damil labanan khāliṣan sā'igal lisy-syāribīn(a).
"And indeed, for you in grazing livestock is a lesson. We give you drink from what is in their bellies - between excretion and blood - pure milk, palatable to drinkers."