Is it permissible for a married man to masturbate when he is away from his wife in order to relieve testicular pain and the feeling of needing to ejaculate, and to avoid premature ejaculation when he meets her, and is this considered religiously permissible?

Masturbation is forbidden and impermissible except out of necessity. Premature ejaculation is not a necessity because it can be treated. Similarly, masturbation due to pain is not permissible unless the pain is severe and unbearable, or results in considerable harm, and masturbation is determined to be the only way to alleviate it. Masturbation is permissible if there is a fear of falling into a greater prohibition, such as adultery or harmful psychological disturbances, based on the principle that "necessities are determined by their extent." It is advisable to seek treatment for premature ejaculation and to be with one's wife as much as possible for chastity and to avoid masturbation.