法華義疏 2.248

2.248

「又見具戒」下，第二、明戒行，精進遍策眾行，戒為萬德之基，此中防凡夫二乘及有所得惡故名為戒。持於性重故言具戒，不犯譏嫌稱威儀無闕。於戒有三：一、清淨義如珠；二、圓正無闕故如珠；三、戒可寶重故如珠。

From "Again seeing those complete in precepts" below is the second, explaining the practice of precepts. Vigor universally spurs all practices, and precepts are the foundation of myriad virtues. Here, guarding against the evils of ordinary persons, the two vehicles, and having attainments is called "precepts." Upholding the naturally grave precepts is called "complete in precepts"; not violating social criticism and suspicion is termed "deportment without defect." Regarding the precepts, there are three [aspects]: first, the sense of purity is like a pearl; second, being round, upright, and without defect is like a pearl; third, the precepts being precious and worthy of esteem is like a pearl.