Mark 10:10

And in the house the disciples again asked him of this matter.

But when they were alone, those who were about him with the twelve, asked him the meaning of the parable.

And when he was come into the house, the disciples asked him privately, Why could not we cast it out?

And he came to Capernaum: and when he was in the house, he asked them, What was the subject of your dispute among yourselves on the road?

Treasury of Scripture Knowledge

And in the house his disciples asked him again of the same matter.

But when they were alone, those who were about him with the twelve, asked him the meaning of the parable.

And when he was come into the house, the disciples asked him privately, Why could not we cast it out?