From 1758, he stayed at a tea hut called Soryuan on Mt. Ikomayama, concentrated on studying and wrote 1,000 volumes of "Bongakushinryo", a book of Sanskrit research.
1758年(宝暦8年)から生駒山中の雙龍庵という草庵に隠居して研究に専念し、千巻にも及ぶ梵語研究の大著『梵学津梁』を著す。