This study examines the effects of the interplay between various aspects of religiosity, generational cohorts and buying attitude on Muslim consumers’ purchase intention of Islamic financial products. Based on data collected from 1263 Muslim consumers in Bangladesh, the findings broadly support the proposed conceptual model that buying attitude acts as a mechanism that transforms religiosity dimensions of Muslims into purchase intention and that the Muslim religiosity–buying attitude–purchase intention relationship is moderated by generational cohorts. The unbundling of the religiosity construct provides a deeper understanding of how the mediating (buying attitude) and moderating (generational cohorts) relationships vary across various religiosity dimensions.