Oh, excuse me, THREE words:
“It was not the horrors of his revelations about my grandchildren that had shaken me the most deeply, shaken me to the core of my core, but rather the the Time Traveler’s last three words. Three words that any Replayer or time traveler visiting here from a century or more from now would react to first and most emotionally – three words I will not share here in this piece nor ever plan to share, at least until everyone on Earth knows them – three words that will keep me awake nights for months and years to come.”
Son of a BEOTCH - TELL US, DAMN IT!
My own guess is the three-word enunciation of “Allah Akbar” ... “Allah-hu Akbar”.