V. A cleric may not make money in another's name any more than in his own.
The following warning, also, we have thought fit to give, that no cleric should attempt to make money in another's name any more than in his own: for it is unbecoming to shield one's crime under another man's gains. Nay, we ought to look at and aim at only that usury whereby what we bestow in mercy here we may recover from the Lord, who will restore a thousand fold what will last for ever.
Source: Letters (New Advent)