Q
What is the significance of utilizing resources that are otherwise discarded in Islam?
A
The Messenger of Allah (ﷺ) happened to pass by a goat thrown (away) which had been in fact given to the freed slave-girl of Maimuna as charity. Upon this the Messenger of Allah (way peace he upon him) said: Why did they not get its skin? They had better tan it and make use of it.
Referensi:
Sahih Muslim 363d, Book 3, Hadith 130
Sahih Muslim 363d, Book 3, Hadith 130