The descriptions in "Horyakukanki" are included in 'Shikken Sadatoki HOJO' (written by Katsuo GOMI), on the 313th page of "The lives of shikken to shoguns in the Kamakura period" (compiled by Motohisa YASUDA in 1974), where descriptions of the incident in other historical documents are included as well.
『保暦間記』の記述は『鎌倉将軍執権列伝』（安田元久編、1974年）内の「執権北条貞時」（五味克夫）313頁にあり、その他の史料でどう書かれているかも紹介されている。