Slaughtering an animal to save a life

The Hadith Sharif states, ‘Treat your ill through Sadaqah.’ This refers to feeding a poor person or purchasing some food items and giving it to him, or giving him some money as Sadaqah. Sadaqah refers to fulfilling the needs of the poor or feeding them. However, the practice of slaughtering an animal to remove a calamity, or saving a life, is not proven from the life of Rasulullah Salallahu Alaihi Wasallam, nor from the Sahaabah, nor from the pious predecessors of former and latter times. Hence, slaughtering an animal and regarding it as a means of protection from calamities or illnesses is incorrect. In fact, Maulana Thanvi Rahimahullah has written that it is not permissible to feed the meat of such an animal to the poor. [Fataawa Qaasmiyyah Pg.385 Vol.11]