This paper is proposing a conceptual framework to explore the effect of waqf management performance and religiosity with the mediating effect of trust on the intention on cash waqf contribution, the Theory of Reasoned Action is adopted as a theoretical background for this proposal, as the perception of the contributors will be representing the Attitude, the religiosity will be representing the subjective norm, and the intention to contribute to waqf is representing the intention to behave. Many waqf studies highlighted the importance of cash waqf, but only a few of them highlighted what triggers the contributors to act. Keywords: Waqf, Cash Waqf, Religiosity, Trust, Waqf Contribution