This study describes the review of Islamic law related to the sale and purchase of workdays conducted by factory
workers Oil palm Fabrique in Simpang Nibung Rawas Village, South Sumatra Province. This paper is field
research by interviewing 13 factory workers to get an overview of buying and selling working days. This study also
uses a literature review from Islamic legal sources and MUI fatwas to explain the appropriateness of buying and
selling working days with Islamic legal principles. In practice, buying and selling working days is not following the
provisions of the MUI DSN Fatwa because the ujrah imposed on the seller is determined by one party, the buyer,
and the amount of the ujrah is expressed in terms of percentage rather than in nominal form. Besides, there is a
mechanism that causes the transaction to contain gharar elements such as the sale of working days that are not yet
owned, and the presence of gharar elements creates a new element, namely usury. Sales of working days that are not
yet owned by workers cause at the end of the agreement the seller is required to pay the principal receivables
accompanied by profits determined by the buyer that can be equated with borrowing money with interest. This
research suggests that factory workers borrow funds from Islamic financial institutions that are more in line with
Islamic legal guidance This research suggests factory workers not to continue the practice of buying and selling
weekdays because there are elements of gharar and usury in it and to consider Islamic financial institutions and
zakat institutions as a solution for lending funds.