Later tea books (such as "Sogetsu Sashiwa Shu" and "Teiyoshu") provide an anecdote: Hideyoshi TOYOTOMI allowed only a few number of people (called the Seven Daisu Tea Masters) to learn the tea ceremony that utilized daisu which was reformed by SEN no Rikyu.
後世の茶書（『草月指話集』『貞要集』など）には、千利休が改めた台子点前を豊臣秀吉が秘伝としてごく限られた者（台子七人衆）に伝授を許したという逸話が伝えられている。