Is it permissible to eat from a banquet held to reconcile a wife with her husband after a dispute, and is such a banquet considered unlawful or an innovation?

The basic principle regarding feasts held to express joy, happiness, and good companionship and neighborliness is that they are permissible customs. Therefore, there is no harm in holding a feast to celebrate the wife's return to her husband's home, to honor her, and to participate in it.