When a man is in a position of marriage or concubinage, it is not permissible for him to masturbate with his hand; Ibn Aqil said this; and he said: Our companions and our sheikh did not make mention of similar aversion, and did not lift the prohibition. He said: And if he is not in a position to have a wife or a concubine, and does not have a sex drive that might lead him into adultery, then masturbation is not permissible for him, since it is enjoyment by himself; the verse forbids it. If the condition wavers between lukewarm and desire, and he does not have a wife or a servant girl or someone to marry, it is disapproved but not forbidden. And if he is overcome by his sex drive, fearing transgression, as in the case of a prisoner, a traveler, or a poor person, it is permissible for him; Ahmad stipulated this, and related that the Companions used to do it on their military raids and their journeys.