四分律刪繁補闕行事鈔 3.343

3.343

打靜法，維那先戶外具儀，斂掌，傍門面入已，至打處立，合掌。右手取椎舉起，擬砧訖，然後打一聲，不得有重響；方乃臥椎，手從柄處捊之。然後合掌，有所啟白；若有施與呪願，唱告等得等，維那口陳其緣。不得打椎，以為事用，除為眾亂等。

The rule for striking the mallet for silence: The karmadāna first assumes full deportment outside the door, clasps his hands, enters facing sideways along the door, and upon arriving at the place of striking, stands and joins his palms. With his right hand, he takes the mallet and raises it, aiming at the block; only then does he strike one sound, which must not have an echo; then he lays down the mallet, running his hand along from the handle. Afterward, he joins his palms to make whatever announcement is needed; if there are donations, dedication of merit, announcements, and the like, the karmadāna states the circumstances orally. He must not strike the mallet for routine matters, except when the assembly is disorderly, etc.