Is it permissible or forbidden for a man to help a divorced woman who has a daughter, with the intention of helping her for the sake of Allah and marrying her in the future?

It is permissible to combine intentions in acts of righteousness, such as assisting a divorced woman for the sake of Allah and desiring to marry her or her daughter. This is because it combines an act of worship with a permissible act that occurs naturally, similar to cooling oneself with ablution. However, this combination may lead to corruption, such as withholding aid from those deserving or engaging in unlawful mixing under the pretext of desiring marriage.