Does the Khutbah have to be Repeated if the Imaam needed to make Wudhu after delivering it?

Q: Salaah-194: The Imaam needed to make wudhu after delivering the Khutbah and because there was no water in the Masjid's pond, he had to go to a nearby house to quickly make wudhu. He then returned to lead the salaah without repeating the Khutbah. Is the salaah valid or does he have to repeat the Khutbah?

Answer: It was not necessary to repeat the Khutbah and the salaah was valid. And Allaah knows best what is most correct.

Fatawa Rahimiyyah vol.2