The first shaykh, who has a gazelle, explains that the gazelle is actually his wife (and cousin), transformd.
Their marriage produced no children, she he took a concubine who bore him a son. The wife became jealous, and used witchcraft to turn his concubine into a cow and his son into a calf, and gave them to a herdsman. At the Great Feast, the cow was slaughtered, but gave no meat. The herdsman's daughter, who had some magic skills, recognized that the calf was an enchanted human and lifted his curse. She married him and turned the evil wife into a gazelle.