Musannaf Ibn Abi Shayba 30:128

Waki’ narrated to us, from Sufyan, from Mansur, from Hassan ibn Abi al-Ashras, from Mughith ibn Sumayy, who said: The bird will come and land on the tree, and it will eat from one of its sides dried meat (qadid), and from the other side roasted meat (shawa’).