觀無量壽佛經疏 2.36

2.36

答曰：「凡聖極尊無過於佛，傾心發願即先禮大師。戒是小緣，是以唯請目連來授。然王意者，貴存得戒，即是義周，何勞迂屈世尊也。」

Answer: 'Among ordinary beings and sages, none is more supremely revered than the Buddha; in pouring out his mind to make a vow, he therefore first bowed to the Great Master. Precepts are a minor occasion; therefore, he only invited Maudgalyāyana to come and confer them. The king's intention was to value obtaining the precepts, which complete the meaning; why trouble the World-Honoured One to come out of his way?'