What is the ruling of Islamic law on a "Society" that collects a compulsory monthly sum from a group of individuals, for one of them to take by lottery each month, and which is designated for occasions?

We have previously clarified that this type of association is permissible, and the condition that all participants remain until the end of the cycle does not change the ruling of permissibility. This is because usury (riba) is the condition of a benefit for the lender from the borrower in exchange for the mere loan, which is not present here. The stipulated benefit is not provided by the borrower; rather, it is provided by the other participants, and it is a benefit for all participants except the last one. This is what Ibn Uthaymeen and Ibn Jibreen have given fatwas regarding.