觀無量壽佛經疏 4.65

4.65

三、從若有眾生下，至無眾過患已來，正明第五第六門中受法不同，即有其四。一明簡機堪與不堪。二明受持小乘齋戒等。三明小戒力微不消五逆之罪。四明雖持小戒等不得有犯，設有餘愆，恒須改悔必令清淨，此即合上第二戒善之福也。然修戒時，或是終身，或一年一月一日一夜一時等，此時亦不定，大意皆畢命為期，不得毀犯也。

Third, from "if there are sentient beings" down to "free from all faults," it directly clarifies the differences in receiving the teachings under the fifth and sixth gateways, which consists of four points: First, it examines capacity, distinguishing suitability and unsuitability. Second, it clarifies receiving and upholding the Hīnayāna purification precepts, and so forth. Third, it clarifies that because the power of the minor precepts is weak, it cannot eradicate the sins of the five deadly transgressions. Fourth, it clarifies that although one upholds the minor precepts and the like, one must not violate them; even if there are remaining faults, one must constantly repent and ensure that one is purified. This corresponds to the second blessing of moral goodness above. Furthermore, the duration of cultivating the precepts may be throughout life, or for one year, one month, one day and night, or one hour; the duration is not fixed, but the general intention is always to take the end of one's life as the limit, not permitting any violation.