Nafi' narrates from Ibn Umar (may Allah be pleased with them both) that "the Prophet (peace and blessings be upon him) forbade bay' al-kali' bi-l-kali'" (that is, when both the payment of the price and the delivery of the item are on credit).
This Musa is Musa bin Ubaydah al-Rabadhi; in the narration of our shaykh Abu Abdullah he is named Musa bin Uqbah, and that is a mistake.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10536
Nafi' narrates from Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) forbade bay' al-kali' bi-l-kali' (the sale of a deferred debt for a deferred debt).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10537
Musa bin Ubaydah narrated it in the same way. Musa said: Nafi' said: That means selling a debt for a debt.
Abu Ahmad (Ibn Adi) said: This is known as a narration of Musa bin Ubaydah from Nafi'.
The Shaykh (may Allah have mercy on him) said: Ubaydullah bin Musa, Zayd bin al-Hubab and others narrated it from Musa bin Ubaydah, from Abdullah bin Dinar, from Ibn Umar.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10538
Abdullah bin Dinar narrates from Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) forbade bay' al-kali' bi-l-kali' (that is, selling a debt for a debt).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10539
It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) forbade "bay' al-kali' bil-kali'" (the sale of a deferred debt for a deferred debt). Abu Ubayd said: It means the sale of credit for credit.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10540