XII. The care of Lupicinus is in part dealt with and in part referred to them.
The case also of bishop Lupicinus we order to be heard there, but at his urgent and frequent entreaties we have restored him to communion for this reason, that, as he had appealed to our judgment, we saw that while the matter was pending he had been undeservedly suspended from communion. Moreover there is this also in addition, that it was clearly rash to ordain one over his head who ought not to have been ordained until Lupicinus, having been placed before you or convicted, or having at least confessed, had opportunity to submit to a just sentence, so that, according to the requirements of ecclesiastical discipline, he who was consecrated might receive his vacant place.
Source: Letters (New Advent)