 Once there was a person who went to the Emperor to report him about this suspicion, Thái Tông immediately visited Trần Thủ Độ's place with this man and made him tell everything in front of the grand chancellor.After hearing the story, Trần Thủ Độ not only accepted that the man had somewhat his reason but also awarded him for being concerned for the Trần Dynasty.His successful governing was considered by historical books as the main factor that not only led to the stability of Early Trần period but also contributed to the victory of Đại Việt over the first Mongol invasion.