Is designing a program for letters of guarantee and documentary credits for a contracting company considered a sin, and what is the legitimate legal arbiter for designing programs that may involve both the unlawful and the lawful?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
As for letters of guarantee and letters of credit, there are permissible and prohibited types. If you know that the contracting company operates in permissible activities, then it is permissible for you to design the program; otherwise, it is not. The basic principle regarding program design is permissibility, but it is forbidden to design a program if it is known that it will be used for something prohibited, because that constitutes aiding in sin.
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/142815
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- Ftawy
- Original fatwa ID
- 142815
- Added here
- . This is when the answer was added to El Fatwa, not the fatwa's date.
- Text
- Summary from Ftawy's records, reviewed by El Fatwa's sharia committee.
- Read the full ruling
- Read the full answer on Ftawy