"Again Jesus said, “Peace be with you! As the Father has sent me, I am sending you.”
22And with that he breathed on them and said, “Receive the Holy Spirit.
23If you forgive anyone’s sins, their sins are forgiven; if you do not forgive them, they are not forgiven.”
Jesus also said the following to His disciples and all believers:
"For if you forgive men their trespasses, your heavenly Father will also forgive you. But if you do not forgive men their trespasses, neither will your Father forgive yours." - Matt. 6:14-15
And
"Then the master summoned him and declared, ‘You wicked servant! I forgave all your debt because you begged me. Shouldn’t you have had mercy on your fellow servant, just as I had on you?’ In anger his master turned him over to the jailers to be tortured, until he should repay all that he owed.
That is how My heavenly Father will treat each of you unless you forgive your brother from your heart.”
But all that said, I did put into my post that
most everything that Jesus said to His disciples is to be applied to all believers. There are of course things that He said to them that was for them specifically.