Defination of a sahabi -according to Twelver shias

and how do we follow ahle bayt did they leave any books with us ? NO so we rely on narrations from them , for that we need rijal for narraters

what 12ers might think are authentic narrations from ahlebayt might be considered forgeries by sunnis as they consider nararters unreliable and vice versa ...so its not as simple as this

as much as u like to avoid it , u cannot avoid this debate on reliability of narraters and jurists