What is the ruling on us resorting to forging the father's signature on fictitious sales contracts to guarantee our mother's right to properties she contributed to purchasing, and to prevent the father's second wife from benefiting from these properties, knowing that the father has not spent on us or our mother for three years?

Bearing false witness is absolutely impermissible, even if it is to reclaim a right, because it is a violation of Islamic law and opens the door to injustice and the unlawful consumption of people's property. Therefore, it is not permissible to bear witness to a sales contract that did not occur.

To reclaim the mother's right, the matter must be brought before the judiciary, and a truthful testimony must be presented proving that she paid half the price of the lands as a purchase and acquisition, not a gift.

It is also advised to counsel the father to safeguard his wife's right, and assistance can be sought from some people of knowledge and righteousness to influence him.