Musannaf Ibn Abi Shayba 13:472

Abu Bakr narrated to us, he said: Hafs ibn Ghiyath narrated to us, from al-Hajjaj, from al-Hakam, he said: The Messenger of Allah (may Allah bless him and grant him peace) forbade the [trading of] an animal [for] one [animal] for two, meaning on credit.