Musannaf Ibn Abi Shayba 3:1960

Abu Bakr narrated to us, he said: Yahya ibn Sa'id al-Qattan narrated to us, from Muhammad ibn 'Ajlan, from 'Ubayd Allah ibn Miqsam: That a storyteller used to recite the prostration (verse) after the dawn (prayer) and then prostrate. Ibn 'Umar forbade him, but he refused to stop. So he pelted him with pebbles and said, "They do not understand."