《礼记·王制》
诸侯的春礿是分别遍祭各庙，夏祭则一年分别遍祭各庙，一年合祭群庙，秋祭和冬祭都是合祭群庙。
诸侯礿，犆；禘，一犆一祫；尝，祫；烝，祫。
The feudal lord's spring Mo is to worship each temple separately, while the summer sacrifice is to worship each temple separately one year and to worship the group temple collectively the next year. The autumn sacrifice and the winter sacrifice are both collective sacrifices to the group temple.