A canon reference for Artur Hawkwing being a lesser ta'veren than Rand, as @KutuluMike said:

"No one knows anything about ta'veren as strong as Rand." For just a moment she sounded vexed at not knowing. "Artur Hawkwing was the most strongly ta'veren of whom any writings remain. And Hawkwing was in no way as strong as Rand."

 

_{-- Moiraine, Book 3: The Dragon Reborn, Chapter 8: Jarra}

A canon reference for Artur Hawkwing being a lesser ta'veren than Rand, as @KutuluMike said:

"No one knows anything about ta'veren as strong as Rand." For just a moment she sounded vexed at not knowing. "Artur Hawkwing was the most strongly ta'veren of whom any writings remain. And Hawkwing was in no way as strong as Rand."

_{-- Moiraine, Book 3: The Dragon Reborn, Chapter 8: Jarra}

A canon reference for Artur Hawkwing being a lesser ta'veren than Rand, as @MichaelEdenfield said:

"No one knows anything about ta'veren as strong as Rand." For just a moment she sounded vexed at not knowing. "Artur Hawkwing was the most strongly ta'veren of whom any writings remain. And Hawkwing was in no way as strong as Rand." - Moiraine, p.115 (chapter 8, Jarra) in book 3, tDR.

A canon reference for Artur Hawkwing being a lesser ta'veren than Rand, as @KutuluMike said:

"No one knows anything about ta'veren as strong as Rand." For just a moment she sounded vexed at not knowing. "Artur Hawkwing was the most strongly ta'veren of whom any writings remain. And Hawkwing was in no way as strong as Rand."

_{-- Moiraine, Book 3: The Dragon Reborn, Chapter 8: Jarra}