[ULPIANUS libro octauo decimo ad Sabinum. ] §12.5.6.prPerpetuo Sabinus probauit ueterum opinionem existimantium id, quod ex iniusta causa apud aliquem sit, posse condici: in qua sententia etiam Celsus est.
[ULPIAN, Eighteenth Book on Sabinus.] Sabinus consistently approved the opinion of the ancients who held that what is in someone's possession on an unjust ground can be recovered by a condictio; Celsus also is of this opinion.