A man whose wife is a young girl or a woman past menstruation: how he should divorce her

Al-Hasan (may Allah have mercy on him) said: If a man has in his marriage a woman who does not menstruate, due to not having reached maturity or due to old age, he may divorce her whenever he wishes.

Umar bin Abd al-Aziz (may Allah have mercy on him) liked that a woman who does not menstruate be divorced at the appearance of the new moon.

Al-Sha'bi (may Allah have mercy on him) said: Such a woman should be divorced according to the new moons.

Ibrahim (may Allah have mercy on him) said: If a man has in his marriage a woman who does not menstruate, due to not having reached maturity or due to old age, and he wants to divorce her, he should divorce her on the first of the lunar month, and then not give another divorce until her waiting period is complete.