He will join us or die, master

Darth Vader:

[53:07] [kneeling before Emperor Palpatine's hologram] Darth Vader:
What is thy bidding, my master? Emperor Palpatine:
There is a great disturbance in the Force. Darth Vader:
I have felt it. Emperor Palpatine:
We have a new enemy. The young Rebel who destroyed the Death Star. I have no doubt this boy is the offspring of Anakin Skywalker. Darth Vader:
How is that possible? Emperor Palpatine:
Search your feelings, Lord Vader. You will know it to be true. He could destroy us. Darth Vader:
He's just a boy. Obi-Wan can no longer help him. Emperor Palpatine:
The Force is strong with him. The son of Skywalker must not become a Jedi. Darth Vader:
If he could be turned, he would become a powerful ally. Emperor Palpatine:
[intrigued]
Yes... He would be a great asset. Can it be done? Darth Vader:
He will join us or die, master