四分律刪繁補闕行事鈔 2.197

2.197

覆屋過三節戒二十。四緣：一自為己，二自作使人覆，三至第三節未竟不去見聞處，四至三節竟犯。

Precept twenty: roofing a house beyond three tiers. There are four conditions: first, doing it for oneself; second, doing it oneself or having another do the roofing; third, reaching the third tier without leaving [the range of] sight and hearing before it is finished; fourth, transgressing upon completing up to the third tier.