Canon 2 (1139), as printed in Denzinger nos. 364-365

Canon 2. If anyone has obtained by money — the accursed heat of avarice intervening — a prebend, or a priorship, or a deanery, or any ecclesiastical honour or promotion, or any ecclesiastical sacrament whatever, such as chrism or holy oil or the consecration of altars or of churches, let him lose the honour thus ill gotten; and let the buyer, the seller and the go-between be struck with the mark of infamy. And let nothing be demanded of anyone by anybody, either beforehand or afterwards, whether for a meal or under pretext of any custom, nor let him presume to give anything, since that is simoniacal; but let him enjoy freely and without any diminution the dignity and benefice conferred upon him.