Who said "Your death will be swift and painless."?

This quote is attributed to Vegeta.

Your death will be swift and painless. - Vegeta

"Your death will be swift and painless."

Vegeta Death

"I am the prince of all Saiyans!"

"You dare challenge me? I am superior to you in every way!"

"A true warrior never surrenders."

"I will become the strongest in the universe."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."