Supplication for the Newlywed and the Ruling on Saying "With Prosperity and Children"

Question:
He also asks about the supplication said for the newlyweds, and what is the ruling on that phrase that is repeated by some people, such as saying "with prosperity and sons"?

Answer:
The prescribed supplication is to pray for them for success and righteous offspring, such as saying, "May Allah bless you both and bring you together in goodness and well-being." As for saying "with prosperity and sons," this is a custom of the people of the pre-Islamic age of ignorance (jahiliyyah). It is mentioned in some hadiths, but it is not established from the Prophet (peace and blessings be upon him). So one should supplicate with what conforms to the Shari'ah: "May Allah bless you both and bring you together in goodness and well-being." Yes.