Since the lost Ita-honzon (wooden main deity) of Taishakuten was discovered during the restoration of the main hall of Daikyo-ji Temple one Koshin Day in the latter half of the eighteenth century, Ennichi became to be held on Koshin Day (for details, see "Shibamata Taishakuten").
18世紀後半に題経寺の本堂を修復している際に、紛失していた帝釈天の板本尊が発見され、その日が庚申だったことから、庚申の日を縁日とするという（詳しくは柴又帝釈天を参照）。