The manuscript of the Aqw?l Qat?da has repeatedly attracted particular interest among modern scholars, as it raises questions concerning the early development of the Ib????� Basran community and the emergence of Islamic jurisprudence in Iraq. It is a unique document because it attests to the existence of a scholarly link between Sunn?�s and Ib????�s during the early development of Islamic law. The fact that the legal responsa and traditions of Qat?da born Di ?ma al-Sad��s?� (60/680-117/735) are part of an Ib????� collection, in which the traditions of Ib????� Imam J?bir born Zayd (d. 93/ 711) have been transmitted through Amr born Harim and Amr born D?�n?r, proves that the Ib????� lawyers of the first generations considered Qat?da to be a faithful upholder of J?bir's doctrine. Given the lack of material available for J?bir , instructions must have been given to collect whatever was transmitted through Qat?da. Qat?da's legal responsa must have corresponded to those of the first Ib????� authorities, which explains why the collator of the Aqw?l Qat?da (probably Ab�� Gh?nim al-Khur?s?n?�) included them in an Ib????� manuscript. The present volume sheds light on the relationship between the Aqw?l Qat?da and Ib????� authorities such as al-Rab?�, Ab�� Ubayda, and J?bir.