Arabic Culture and The Duel

[twilight2000]

Another one folks. Looking to find out if in Arabic culture there is (or was at any time, my characters are long lived) anything resembling the duel and if so, what it's called, how the challenge is made and what the rules (and timeline for popular use) were. If it matters, my Arabic characters are from Northern Africa, Morocco to be specific.

A nod in a good direction would be good too -- I can't find anything looking, so either I'm using the wrong filters for searching or I'm looking in the wrong places :>.

Thanks!