I have managed to trace back the strain of Ubayyan Abu Jurayss (Umm Jurayss for the females) to the ‘Utayfat (alt. spellings ‘Atayfat and ‘Otayfat), one of the main clans of the Wuld ‘Ali tribe of ‘Anazah. But I don’t know yet how they got to the Wuld ‘Ali and where from. In the below tree of the Anazah clans by Ibn ‘Abbar, the Utayfat are in red and the overall Wuld ‘Ali in green. The ‘Utayfat, whose leading clan is (I think) al-Wati, are under the Dhana Dhuri section of the Wuld ‘Ali, which is led by the family of Ibn Smeyr (alt. spelling Smeer/Sumayr/Semeyr etc). The Wuld ‘Ali at large are led by the clan of al-Tayyar. Of course, this is significant insofar as one of the main line of Egyptian Arabians, that of El Shahbaa, is from the strain of Ubayyah Umm Jurayss. Umm Jurayss means “mother of the little bell”.
The excerpt below comes from Eduard Löffler’s 1860 book, Die österreichische Pferde-Ankaufs-Mission, which is a firsthand account of the 1856-7 expedition helmed by Colonel Rudolf von Brudermann to the desert to buy horses for the state studs. The expedition, by this point, had already acquired a number of horses, including Aghil Aga, who still has a presence in Al Khamsa horses. They had met with the Wuld Ali, who were camping in the Hauran, to the south of the Tell al-Hara, “only 17 or 18 hours of riding from Damascus”. Löffler says the sheikh was Mohamed El Duchi (Mohammed Dukhi ibn Smeyr in Lady Anne Blunt’s Bedouin Tribes of the Euphrates, and Mohammed ed Douhi in Roger Upton’s Travels in the Arabian Desert), who happened to be in Damascus at the same time as the Austrians, negotiating with the governor over camels for a caravan of pilgrims travelling to Mecca in May. Colonel von Brudermann made arrangements via the Austrian consul Pfaeffinger to journey with the sheikh back to the Wuld Ali, where they might see their horses. Löffler remarks that the horses of the Wuld Ali were “edle, schöne, prachtvolle Thiere, die entzückten und jeden Pferdefreund enthusiasmirt haben würden”…