四分律刪繁補闕行事鈔 1.529

1.529

初中，要五僧已上，得白差自恣。當鳴鐘集僧，各在地上敷席而坐，以是互相舉過，處床慢相不絕故。律云：不得在座，不得在地，應離座自恣。《五分》云：好泥地，布草座已，而自恣。並偏袒右肩，右膝著地，合掌。初行水，香汁浴籌，唱數告令，大同說戒，唯改說戒為自恣之辭。乃至沙彌等亦須集堂，以治舉義同，待唱出已，方始得去。在別處行自恣法，如別法明。

In the first, it requires five monks or more to be able to make a motion appointing [the receiver of] pravāraṇā. One should strike the bell to assemble the saṃgha, each spreading a mat on the ground and sitting, because in mutually pointing out faults, occupying beds would allow arrogant demeanor to continue unbroken. The Vinaya says: "One must not be on a seat, nor on the bare ground; one should hold pravāraṇā apart from the seats." The Pañcavargika-vinaya says: "Plaster the ground well, spread grass seats, and then hold pravāraṇā." All bare the right shoulder, place the right knee on the ground, and join the palms. First, distribute water, bathe the counting sticks in fragrant juice, call out the tally, and make the announcements, largely identical to the upoṣadha recitation, only changing the words of upoṣadha recitation to those of pravāraṇā. Even the śrāmaṇeras and others must also assemble in the hall, because the principle of dealing with and pointing out [faults] is the same; only after waiting for the announcement to dismiss them are they permitted to leave. They perform the pravāraṇā rite in a separate place, as explained in the specific rites.