 In accounts tracing the ancestry of Mohammed back to Ma 'ad ( and from there to Adam ) , Arab scholars alternate , with some citing the line as through Nebaioth , others Qedar . 
 In accounts tracing the ancestry of Mohammed back to Ma <a href='null_genetive' title='1'><mark>'</mark></a>d ( and from there to Adam ) , Arab scholars alternate , with some citing the line as through Nebaioth , others Qedar . 
In accounts tracing da ancestry of Mohammed back to Ma  d ( and from dere to Adam ) , Arab scholars alternate , w sum citing the line as through Nebaioth , others Qedar .