What is the ruling on imagining intercourse with one's wife to the point of pleasure and ejaculation for a married man who is traveling?

Imagining intercourse with one's wife is permissible, even if it leads to pleasure and ejaculation, provided that the ejaculation occurs solely through imagination, without using the hand or any other means; otherwise, it would be prohibited masturbation. A traveler is advised not to prolong their absence from their family, to exercise patience and chastity, and not to indulge in sexual fantasies. What helps one maintain chastity are fasting, guarding one's hearing and sight, avoiding places of temptation, occupying one's time with beneficial deeds, and seeking Allah's help.