Does watching pornography – which may include Muslim or non-Muslim women, whether with their consent or through hidden filming – make a person a “dayyuth” (one who lacks protective jealousy over his womenfolk) or diminish his protective jealousy over his family, or does “dayyuth” only apply to one who gazes at Muslim women specifically in these films?

Watching pornographic films is forbidden (haram), whether the women in them are Muslim or non-Muslim, and whether the filming was consensual or not, for the mere act of looking is forbidden. Dayatha (cuckoldry/pimping) is the lack of protective jealousy over one's family and unmarriageable kin (mahram), and merely letting one's gaze wander to the forbidden does not constitute dayatha. However, letting one's gaze wander to the forbidden has many corrupting effects. Addiction to watching pornographic films does not necessarily mean that a person will become a dayyuth, but it is a possible outcome as a punishment for the sin.