Salam 'Alaykoum,
I am currently married and practice interrupted coitus ('azl), I withdraw before ejaculation to avoid pregnancy.
The problem is that when I withdraw I have to stimulate my genital organ a bit by going back and forth with my hand to be able to ejaculate outside (which is in a way a masturbation that I do for a few seconds to ejaculate).
What is the status of this practice? If this is not allowed, how can I practice interrupted coitus by ejaculating outside since I have to stimulate it a bit to ejaculate at the end of the intercourse.
BarakAllahufikum