At all events, he recalls the tradition according to which Jesus had advised the Apostles not to go far from Jerusalem during the twelve years immediately following his Ascension, a tradition known to Clement of Alexandria from the apocryphal Praedicatio Petri.
Regardless of what happened, he remembers the belief that Jesus advised the apostles not to stray far from Jerusalem for twelve years after his ascension, a notion passed down by Clement of Alexandria from an apocryphal text called the Praedicatio Petri.