Article 3
Third, it was asked, if he (the Jew) should give money on his own accord, or some peace token, whether it is licit to accept it. To which the response is, that it seems that it is licit accept it. And it is helpful that money received in this way be returned to those to whom it is owed, or otherwise expended, as has been said before, if they have nothing other than usurious gain.
Chapter 3 of 8