I searched for things like:

endless Muslim Arabesc Pattern svg
endless Muslim Arabesc Pattern dxf
endless Muslim Arabesc Pattern vector


and got things like these as results. Might find what you need looking with searches similar.

https://www.shutterstock.com/search/seamless-islamic-pattern?image_type=vector
https://3axis.co/free-vectors/islamic
https://dwgmodels.com/570-islamic-decorative-patterns.html
https://www.freepik.com/vectors/muslim-pattern

Good luck!