四分律刪繁補闕行事鈔 2.156

2.156

使非親尼浣染毛戒十七。制意、犯緣，同浣衣戒。又《多論》云：為增尚佛法故制。若諸尼眾，執作浣染，廢修正業，則無威儀，破增尚法。又止惡法次第因緣，各令清淨故，餘如《疏》中。

Precept 17: Having an unrelated bhikṣuṇī wash and dye wool. The intention of the prohibition and the conditions of the offense are the same as the precept on washing robes. Furthermore, the Sarvāstivāda-vinaya-vibhāṣā says: It was instituted to exalt the Buddha's Dharma. If assemblies of bhikṣuṇīs engage in the work of washing and dyeing, neglecting their proper practice, they lack proper deportment and undermine the exalted Dharma. Moreover, it puts an end to sequential conditions of evil dharmas, so that each remains pure. The rest is as in the Commentary.