Well, that's fucking Vikings...
If you can bring a historical event where jews met vikings, bring it, and we can have a discussion. (in case you are asking why muslims, here is something).
Amazon has a series of sagas that contain a lot of information. It has The Prose Edda, Poetic Edda, The Volsung, and many, many others. There's a series of 8 collections, and each one is $0.99.
https://www.amazon.com/Saga-Six-Pack-Worm-Tongue-Illustrated-ebook/dp/B00XFG1YA6