Who said "He's gone. Vision is gone."?

This quote is attributed to Scarlet Witch (WandaVision).

He's gone. Vision is gone. - Scarlet Witch (WandaVision)

"He's gone. Vision is gone."

Scarlet Witch (WandaVision) Death

"I can't feel you. I can't touch you. I don't know how to say goodbye to that."

"What is grief, if not love persevering?"

"I don't need your pity."

"You can't just take him away from me."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."