Abstract : Islam is a comprehensive religion that provides guidance for Muslims on how to live in this world while also preparing for the hereafter’s eternal life. Islam has established a system of distributing resources via mandatory and voluntary acts of generosity, with the aim of maintaining social stability within the Ummah and simultaneously seeking eternal benefits in the hereafter. This study aims to explore the mechanisms and impact of Islamic generosity, namely via the practice of Waqf and other instruments include Zakat, Mandatory Infaq, Sadaqah, Wasiyyah, and Hibah in Islamic social finance institutions. The ultimate purpose of this contribution is to earn Allah’s pleasure. This present study is grounded on a comprehensive examination of previous scholarly investigations pertaining to the phenomenon of Islamic generosity. By examining the historical and contemporary significance of Islamic generosity mechanism, this research seeks to shed light on the ways in which this behaviour contributes to the functioning and development of Islamic social finance institution. Subsequently, this paper also provides suggestions for further investigations pertaining to the phenomenon of Islamic generosity behaviour.