四分律行事鈔資持記 2.1326

2.1326

緣中。第三隨順有三：一供給所須（有二種，若法若財。），二共同羯磨（同說戒羯磨），三止宿言語（謂一切覆障，或一切覆不一切障，或一切障不一切覆，或不盡覆不盡障，或彼此先後入，或俱時八，隨脇著地，一一墮。）不犯中。若不知，若屋一切覆，無障，半障，少障，或一切障，無覆，半覆，少覆半覆障，少覆障，露地；若病，祇繫命梵難等。

In the conditions: The third, "following along", has three [aspects]: 1. supplying necessities (there are two kinds: either Dharma or wealth); 2. performing karmavācanā together (such as sharing poṣadha and karmavācanā); 3. dwelling together and speaking (meaning entirely covered and obstructed; or entirely covered but not entirely obstructed; or entirely obstructed but not entirely covered; or not completely covered and not completely obstructed; or either entering earlier or later, or both entering at the same time: whenever the ribs touch the ground, each constitutes a pāyattika). Non-offenses: if not knowing; or if the building is entirely covered but has no obstruction, half obstruction, or minor obstruction; or entirely obstructed but with no cover, half cover, or minor cover; or half covered and obstructed, or minorly covered and obstructed, or in the open; or if sick, imprisoned, or facing dangers to life or celibacy, etc.