I Stream DC on Marvel - Chapter 408 - Bleach: Aizen and Kyoka Suigetsu, Evaluation With three Captains, New Doll and Kuchiki Byakuya.

... , New Doll and Kuchiki Byakuya.

(Karakura, the area of the fight between Renji and Allen, sometime after the end of the battle)

Aizen appeared at the scene where they fought. In front of him, images began to flicker, showing how Allen fought, each mark and cut seemed to tell Aizen what had happened.

Of course, he had thousands of ways to spy on the fight, but he didn't do it. Perhaps so Allen wouldn't think he was being watched, or simply because he didn't care enough. ...