釋門章服儀 1.49

1.49

至於行護，部別具彰。如《四分》云：「所行之處，衣鉢隨身，猶如飛鳥。」《僧祇》，敬護三衣，當如塔想。《十誦》，不得摙糞擔木等。律中五事，留僧伽梨：一、疑雨；二、疑怖；三、藏舉；四、浣染；五、經營。若有瘦病，衣重難持，僧作法開，得離一衣，乃至九月，緣一有差，不許加法。

As for guarding them in practice, the differences among the schools are fully evident. As the Dharmaguptaka Vinaya states: 'Wherever one travels, robes and bowl accompany one's body, just like the wings of a flying bird.' The Mahāsāṃghika Vinaya states: 'Revere and protect the three robes, viewing them as though they were a stūpa.' The Sarvāstivāda Vinaya forbids carrying dung, bearing wood, and the like while wearing them. In the Vinaya, five circumstances permit setting aside the saṃghāṭī: first, fear of rain; second, fear of danger; third, storing and putting it away; fourth, washing and dyeing; fifth, attending to monastery duties. If one has an emaciating illness such that the robe is heavy and difficult to carry, the Saṃgha conducts a karman to grant an exception, allowing one to be separated from one robe for up to nine months; if even a single condition is missing, this procedure is not permitted.