勅修百丈清規 8.20

8.20

At the congee and midday meals, when opening the bowls in the Sangha hall, chanting the Buddha's name, announcing the food, distributing the food, distributing donations, and announcing to the assembly, it is struck. The karmadāna oversees it. When descending from the hall, the sacred monk's attendant strikes it. When the administrators ask to step down, and when administrators are invited, it is also struck. When an abbot enters the monastery, opens the hall, and is about to preach the Dharma, the leader from among the other monasteries strikes it; this is called 'striking the mallet.'