Especially it is said his victories in the Jisho-Juei War was owed to the instruction of 'Toranomaki' (Part of the Tiger) of "Rikuto" that he learned, and from this anecdote, a secret guide to success began to be called 'Toranomaki.'
特に『六韜』のうち「虎巻」を学んだことが後の治承・寿永の乱での勝利に繋がったと言われ、ここから成功のための必読書を「虎の巻」と呼ぶようになった。