What is the ruling on imposing exorbitant amounts of money on the groom at the time of marriage, and is it permissible to cite Allah's saying: (He said, "Indeed, I wish to wed you one of these two daughters of mine on [the condition] that you serve me for eight years. But if you complete ten, it will be [a favor] from you; and I do not wish to put you to hardship. You will find me, if Allah wills, of the righteous.") as evidence for this? What is meant by the verse? And what is the order of priorities for spending on relatives?

The jurisprudence of Islamic law is built upon the Prophetic Sunnah, not on individual incidents. Some people have distorted the issue of excessive dowries, disregarding the ahadith that encourage facilitating the dowry, by using the story of Prophet Musa's marriage (peace be upon him) as a pretext. This verse indicates the permissibility for a guardian to stipulate something for himself when marrying off his daughter, and this is the view of the Hanbalis, contrary to the Shafi'is. Even if it were said that this is permissible, it does not mean changing the Prophetic Sunnah regarding the facilitation of dowries. And the demand of the wife's agnates for a special allowance from the husband, or financial assistance by way of obligation or diffidence, is considered illicit gain and unlawful money. In fact, Hanafi jurists considered it a prohibited bribe. No scholar has ever said that a husband's expenditure on his wife's family is obligatory upon him, and as for showing kindness to the needy, that is another matter. So, let those who strive to destroy the homes of their daughters and sisters fear Allah, and let them know that Allah is aware of them and will hold them accountable.