that is a presupposition. The fact that the disciples were Baptized before Jesus died and rose again on the third was recorded in scripture and states that Jesus Himself did not baptize anyone.
John 4:1-2
Therefore, when the Lord knew that the Pharisees had heard that Jesus made and baptized more disciples than John (though Jesus Himself did not baptize, but His disciples), He left Judea and departed again to Galilee.
That water baptism done doesn't state it was John who did it, but it was assumed in addition, Mathew 28: 19 was said after the resurrection.
John 4:1-2
Therefore, when the Lord knew that the Pharisees had heard that Jesus made and baptized more disciples than John (though Jesus Himself did not baptize, but His disciples), He left Judea and departed again to Galilee.
That water baptism done doesn't state it was John who did it, but it was assumed in addition, Mathew 28: 19 was said after the resurrection.