四分律刪繁補闕行事鈔 2.297

2.297

與佛等量作衣戒九十。《多論》云：佛量丈六，常人半之，衣廣長皆應半也。《十誦》云：長佛九磔手，《五》、《祇》二律亦同；有本十磔手者，錯也。長姬周尺丈八，廣丈二；常人九尺、六尺也。事希故，無暇廣述，須知。

Precept 90: Making a robe of equal measure to the Buddha's robe. The Sarvāstivāda-vinaya-vibhāṣā says: The Buddha's stature is sixteen feet; an ordinary person is half of that, so the robe's length and width should both be halved. The Daśādhyāya-vinaya says: Nine Buddha spans in length; the Pañcavargika and Mahāsāṃghika Vinayas say the same; any edition having ten spans is erroneous. It is eighteen feet long and twelve feet wide by the Ji-Zhou ruler; for an ordinary person, it is nine feet and six feet. Since this case is rare, there is no leisure to elaborate, but it must be known.