Page 81 of the standard 604-page Madani mushaf falls in juz 4 and contains 4 verses from Surah An-Nisa. The page break matches the printed mushaf, so you can follow along with a physical copy or track a memorisation plan page by page.
If you desire to take a wife in place of another, and you have given one of them a quintal [of gold], do not take anything away from it. Would you take it by way of calumny and flagrant sin?!
4:21
How could you take it back, when you have known each other, and they have taken from you a solemn covenant?
4:22
Do not marry any of the women whom your fathers had married, excluding what is already past. That is indeed an indecency, an outrage and an evil course.
4:23
Forbidden to you are your mothers, your daughters and your sisters, your paternal aunts and your maternal aunts, your brother’s daughters and your sister’s daughters, your [foster-]mothers who have suckled you and your sisters through fosterage, your wives’ mothers, and your stepdaughters who are under your care [born] of the wives whom you have gone into—but if you have not gone into them there is no sin upon you—and the wives of your sons who are from your own loins, and that you should marry two sisters at one time—excluding what is already past; indeed Allah is all-forgiving, all-merciful—
