《明史·列传·卷六》
并因此对群臣说： 皇祖曾嘱咐先皇，说皇叔存有二心，应当加以防备。
因语群臣曰： 皇祖尝谕皇考，谓叔有异志，宜备之。
He even told his ministers, "My imperial grandfather instructed the former emperor, saying that the imperial uncle harboured ulterior motives and should be guarded against."