John 8:7-9 NIV

7 When they kept on questioning him, he straightened up and said to them, "If any one of you is without sin, let him be the first to throw a stone1 at her."2

References for John 8:7

8 Again he stooped down and wrote on the ground.
9 At this, those who heard began to go away one at a time, the older ones first, until only Jesus was left, with the woman still standing there.