Jundub sold his house in Suhar in order to settle that debt.59 He also was sent to Mecca during Hajj to make peace between the Ibadhi of Hadramawt during the time of 'Abdullah b. Said.60 He also used to look after the activities of the organization in Basrah and to call for the general meetings.61 Hajib died before Abu 'Ubaidah during the Caliphate of Abu Ja'far al-Mansur.62

Among the other outstanding Shaikhs of the Ibadhi community of Basrah were: ii) Hayyan al-'A'raj, a well-known Traditionalist, who lived in Basrah in the same area as his teacher Jabir b. Zaid.63 He was older than Abu 'Ubaidah,64 studied with Jabir b. Aid, and passed on Traditions from Jabir to the Ibadhi students, even to those who studied with Jabir, such as Abu Nuh Salih al-Dahhan.65 iii) Abu Nuh Salih b. Nuh al-Dahhan, from Basrah, who lived with Tayi' in Basrah,66 studied with Jabir b. Zaid67 and participated with Abu 'Ubaidah in teaching Ibadhi doctrine. It is reported that al-Rabi' b. Habib said, "I learned Jurisprudence from three men: Abu 'Ubaidah, Dumam and Abu Nuh."68 Among the extant works which were narrated from Abu 'Ubaidah and Abu Nuh is Kitab nikah al-shighar of 'Abdullah b. 'Abd al-'Aziz, their pupil.69

iv) Dumam b. al-Sa'ib, originally from al-Nadb in Oman.70 He was born in Basrah and studied with Jabir b. Zaid, and narrated Traditions mainly from him.71 Even Abu 'Ubaidah himself learned Traditions reported by Jabir b. Zaid, from Dumam. The most important part Dumam played was teaching Ibadhi doctrine and Traditions most of which were recorded by Abu Sufrah from Abu 'Amr al-Rabi' b. Habib Dumam was imprisoned with Abu 'Ubaidah and another Ibadhi Shaikh called Abu Salim by al-Hajjaj b. Yusuf, and was released after the death of al-Hajjaj.72 There were other Shaikhs such as Abu al-Hurr Ali b. al-Husainy, Abu Hamzah al-Mukhtar b. 'Awf, Balj or Balkh b. 'Uqbah, and others.

v) Among the young students of Abu 'Ubaidah who played a great part in the Ibadhi organization in Basrah during the life of Abu 'Ubaidah and afterwards was Abu 'Amr al-Rabi' b. Habib b. 'Amr al-Farahidi. He lived in Basrah in a place called al-Harbiyah.73 Later he left Basrah for 'Oman and lived in Ghadafan in al-Batinah.74 He was a contemporary of Jabir b. Zaid and studied under him; he studied also under Dumam b. al-Sa'ib, Abu 'Ubaidah, and Abu Nuh Salih b. Nuh al-Dahhan.75 During the time of Abu 'Ubaidah he was, with other members, in charge of the majalis,76 and Abu 'Ubaidah appointed him as a Mufti of the Ibadhi during his life, and described him as "Our pious, reliable, and trustworthy man."77

It was with the assistance of these men that Abu 'Ubaidah carried out his policy successfully, and managed to established two Ibadhi states which were a real threat to both 'Umayyads and 'Abbasids afterwards both in Arabia and North