Musannaf Ibn Abi Shayba 37:648

Al-Hasan ibn Musa narrated to us, he said: Hammad ibn Salamah narrated to us, he said: Sulayman al-Taymi narrated to us, from Abu Uthman al-Nahdi, that Hudhayfah ibn al-Yaman said: While a people were talking, camels passed by them that had been left unattended. They said, "O camels, where are your owners?" The camels replied, "Our owners were gathered [for judgment] in the forenoon."