What is the ruling of Islamic law regarding a husband holding feasts in the last ten days of Ramadan, knowing his wife's preoccupation and her desire to devote herself to worship during these days?

The month of Ramadan (definition) is a season for believers to increase in virtues, and a believer should utilize their time in obedience. If the impediment to reciting the Qur’an and increasing worship is serving one's husband, obeying him, and attending to household matters, then this in itself is an act of worship not to be underestimated. It has been narrated from the Prophet, may Allah’s prayers and peace be upon him: "If I were to order anyone to prostrate to anyone, I would have ordered women to prostrate to their husbands because of the rights Allah has given them over them."