Who said "I have walked through death and emerged unchanged."?

This quote is attributed to Dormammu.

I have walked through death and emerged unchanged. - Dormammu

"I have walked through death and emerged unchanged."

Dormammu Death

"I am eternal. I am infinite. I am Dormammu."

"Your world is but a grain of sand in the vast desert of my domain."

"Time is a construct I have transcended. Your mortality is your weakness."

"Surrender to me, and perhaps I shall make your end swift."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."