David. R. Goodworth explores saying 4.2/Th57 from his book 'The Gospel of Thomas: Evolution'.

Jesus said, “The kingdom of the Father is like a person who had good seed. His enemy came by night and sowed weed among the good seed. The person did not allow them to pull up the weed. He said to them, ‘You may intend to pull up the weed and pull up the wheat along with it. On the day of the harvest the weeds will be plainly visible then they will be pulled up and burned.”