Sabinus was a friend of Saint Benedict, whom he visited at Montecassino and to whom, as recorded by Gregory the Great, he once expressed his preoccupations on the incursions of the Ostrogoth King Totila into the Italian peninsula.

The king, pretending to be a servant, offered him a goblet of wine, but Sabinus was not deceived and thanked him by name, which impressed Totila so much that he renounced his pillaging.

His relics were translated to the present Canosa Cathedral on 1 August in an unknown year of the 8th century by bishop Pietro.

After the destruction of the town by the Saracens, the relics were rescued from the ruins by Saint Angelarius in 844 and taken to Bari Cathedral.

Saint Sabinus is venerated in Canosa and Bari, in both of which places the cathedrals are dedicated to him, in Torremaggiore and Furci.