It is an ancient legend that started in the Gulf region and spread until it reached the Maghreb.
She is a woman who appears in the middle of the day or after the Duha prayer (the 11 noon) and begins wandering the streets to kill passers-by, break into their homes, or eat the children who play at this time.
They described her as a woman with the legs and head of a donkey, but with the body and hands of an ordinary woman.
One of her most famous stories is that there was a Saudi woman married to a soldier working in the Masmak Palace, which is the old royal palace. She looked down to find that the woman's legs are not normal, but the legs of a donkey, so she ran back to her house and closed the door.
When her husband returned, she told him, but he did not believe her, and she told everyone, and no one believed her, and the story was repeated every day.
Until a day came when the husband came back and found blood extending from outside the house to the sitting room, so he told the people and they went after the blood until they found his wife killed and her flesh eaten from him and only her bones remained.
Here, people believed it, and the legend of the donkey Qaila began to spread around.