Who said "Death comes for you all. We are merely the harbingers."?

This quote is attributed to Dalek.

Death comes for you all. We are merely the harbingers. - Dalek

"Death comes for you all. We are merely the harbingers."

Dalek Death

"Exterminate! Exterminate!"

"You will be exterminated!"

"Daleks do not feel pity or remorse or fear."

"We are superior. We are pure."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."