The New Testament portrays the disciples as being in hiding and fearful after Jesus's crucifixion. It states that the tomb was found empty by women followers of Jesus, who then reported it to the disciples. Some disciples, like Peter and John, went to the tomb and found it empty as well. The New Testament then describes various appearances of Jesus to his disciples after his resurrection.
The theory that the disciples stole Jesus's body is an old one, dating back to the early days of Christianity. The Gospel of Matthew mentions that the chief priests and Pharisees spread a rumor that the disciples had stolen the body while the guards were asleep.
There is no historical evidence to support the claim that the disciples stole Jesus's body.