Is the wife entitled to a share of the house whose land she contributed to purchasing and building with a joint loan, and is the husband's action of divorcing her and disregarding her right permissible or forbidden?

If the wife has contributed her money and salary to purchase land and pay its installments, and then the husband registers the property in his name and deprives her of her right, this is a great injustice. However, a claim is not proven merely by assertion; it requires evidence or an admission from the husband. If there is no evidence, she can request the husband to take an oath before the judge. If he refuses the oath, she can take the oath herself and thereby establish her right.