Surat An-Nahl (65-66)

{وَاللّهُ أَنزَلَ مِنَ السَّمَاءِ مَاءً فَأَحْيَا بِهِ الأَرْضَ بَعْدَ مَوْتِهَا إِنَّ فِي ذَلِكَ لآيَةً لِّقَوْمٍ يَسْمَعُونَ} (النحل : 65 )

65- Allah sends rain from clouds to give life therewith to plants, trees, people, and animals. Moreover, He gushed therewith fountains and stored it inside the earth for the need of man after earth was solid and lifeless. Thin denotes the power and wisdom of Allah for those who take heed, consider, and understand.

{وَإِنَّ لَكُمْ فِي الأَنْعَامِ لَعِبْرَةً نُّسْقِيكُم مِّمَّا فِي بُطُونِهِ مِن بَيْنِ فَرْثٍ وَدَمٍ لَّبَناً خَالِصاً سَآئِغاً لِلشَّارِبِينَ} (النحل : 66 )

66- You have a great lesson in animals which indicate the power and creativity of Allah. From which We give you useful milk which is extracted from between excretions and blood.

The process of clarifying milk begins in the stomach where complex nutrition parcels in fodder turn into simple extractions that penetrate the wall of blood vessels to reach mammary glands of the rib.

The second stage of purification takes place among substances exist in the blood to produce pure milk out of excretions and blood by the hand of Allah. The miraculousness lies in: How would the rib allow substances to enter to it without allowing other substances?!

Then milk comes out pure, clean, and delicious to people without being mixed by blood or excretions or even affected by their bad odor, taste, or color.