Nicene and Post-Nicene Fathers, Ser. II, Vol. XIV:
The Canons of the Synods of Sardica, Carthage, Constantinople, and Carthage Under St. Cyprian, Which Canons Were Received by the Council in Trullo and Ratified by II. Nice.: Canon CIX

Canon CIX.  (Greek cxij. continued.)

That Adam was not created by God subject to death.

That whosoever says that Adam, the first man, was created mortal, so that whether he had sinned or not, he would have died in body—that is, he would have gone forth of the body, not because his sin merited this, but by natural necessity, let him be anathema.

Notes.

Ancient Epitome of Canon CIX.

Whoso shall assert that the protoplast would have died without sin and through natural necessity, let him be anathema.

Canon CVIII. is the introduction to the Synod of Carthage of May 1, a.d. 418; and Canon CIX. is Canon j. of that synod.