What is the ruling on masturbation due to remembering external touches and foreplay with one's contracted wife, knowing that this occurs at varying intervals?

If a man contracts a valid marriage with a woman, she becomes his wife, and all things that spouses do become permissible for them. Imagining matters of intimacy and elaborating on them is not appropriate, as it wastes time, and it becomes forbidden if it leads to falling into the haraam. The questioner should fear Allah and stay away from whatever leads to disobedience. He should hasten to consummate his marriage with his wife to achieve self-chastity.