四分律比丘含注戒本 2.133

2.133

(He should speak to a resident bhikṣu, saying: "Put it away securely for me." If there is no one and there is no fear of loss, he should move the bed away from the wall, prop up the bed legs high, place the pillow, mattress, and bedding inside, and cover them with other coarse items; if fearing they might spoil, he should take the bedding and place it on a clothes rack, stand the bed upright, and leave. If he does not act in this way, upon leaving the boundary it is an offense of downfall; if intending to leave he then regrets it and returns, it is a duṣkṛta. If he will return shortly, he is permitted to spend two nights outside the boundary; if before the first light of dawn on the third night he does not go himself or send an envoy to take custody and protect it, he incurs a downfall.)