Musannaf Ibn Abi Shaybah

Hazrat Yazid bin Asam says that I said to Hazrat Maymunah, "Have you seen that person who strikes his forehead on the ground like a beak and wants a mark of prostration to appear on his forehead!" Hazrat Maymunah mockingly said, "Let him do so, perhaps by pecking so much he will enter into the ground!"