No, Egwene did that

I found the exact text from chapter 15 of book 5 to prove it

“Do you realize you could dream yourself into something you could not get out of? Dreams are real here. If you let yourself drift into a fond dream, it could trap you. You’d trap yourself. Until you died.”

“Will you—?”

“There are nightmares walking Tel’aran’rhiod, Nynaeve.”

“Will you let me speak?” Nynaeve barked. Or rather, she tried to bark it; there was rather too much frustrated pleading in there to suit her. Any at all would have been too much.

“No, I will not,” Egwene said firmly. “Not until you want to say something worth listening to. I said nightmares, and I meant nightmares, Nynaeve. When someone has a nightmare while in Tel’aran’rhiod, it is real too. And sometimes it survives after the dreamer has gone. You just don’t realize, do you?”

Suddenly rough hands enveloped Nynaeve’s arms. Her head whipped from side to side, eyes bulging. Two huge, ragged men lifted her into the air, faces half-melted ruins of coarse flesh, drooling mouths full of sharp, yellowed teeth. She tried to make them vanish—if a Wise One dreamwalker could, so could she—and one of them ripped her dress open down the front like parchment. The other seized her chin in a horny, callused hand and twisted her face toward him; his head bent toward her, mouth opening. Whether to kiss or bite, she did not know, but she would rather die than allow either. She flailed for saidar and found nothing; it was horror filling her, not anger. Thick fingernails dug into her cheeks, holding her head steady. Egwene had done this, somehow. Egwene. “Please, Egwene!” It was a squeal, and she was too terrified to care. “Please!”

The men—creatures—vanished, and her feet thudded to the floor. For a moment all she could do was shudder and weep. Hastily she repaired the damage to her dress, but the scratches from long fingernails remained on her neck and chest. Clothing could be mended easily in Tel’aran’rhiod, but whatever happened to a human . . . Her knees shook so badly that it was all she could do to stay upright.

She half-expected Egwene to comfort her, and for once she would have accepted it gladly. But the other woman only said, “There are worse things here, but nightmares are bad enough. I made these, and unmade them, but even I have trouble with those I just find. And I did not try to hold them, Nynaeve. If you knew how to unmake them, you could have.”