What is waqf: What is the meaning of waqf? When did it start in India, its history is related to Mohammad Ghori and Qutubuddin Aibak

Waqf can be considered to have come to India with the arrival of Islam, although history is not very clear about which period it started in. In such a situation, it is difficult for history to decide who would have been the 'first ruler' to formally implement Waqf. This question is exactly like trying to know 'how the tradition of charity started.'