The Tale of the Woodcutter and his Daughters

The Tale of the Woodcutter and his Daughters (German: Die Geschichte von dem Holzhauer und seinen Töchtern) is an Egyptian folktale that deals with the marriage between a human maiden and a bridegroom of supernatural origin who hides under an equine disguise; she betrays his trust, and has to search for him. It belongs to the international cycle of the Animal as Bridegroom or The Search for the Lost Husband, wherein a human princess marries a supernatural husband, loses him, and goes on a quest to find him.

Source: Wikipedia — The Tale of the Woodcutter and his Daughters (CC BY-SA 4.0)