Corpus iuris Abessinorum : textum aethiopicum arabicumque ad manuscriptorum fidem cum versione latina et dissertatione iuridico-historica - Bachmann, Johannes, 1862-; Ibn al-Assal, al-Safi Abu al-Fadail Majid, 13th cent (F. Schneider & Co. (H. Klinsmann), 1889)
No more published?
The Ethiopic text is a translation of an Arabic compendium of canons ("Nomocanon") formulated at the Coptic synod, Cairo, 1239 and compiled by al-Ṣafī Abū al-Faḍāʼil