請觀音經疏闡義鈔 2.28

2.28

初、數中，「與」者，共也。「千二百五十」者，三迦葉有弟子千人，優樓頻螺有五百、伽耶有三百、那提有二百，身子、目連有弟子二百五十人。迦葉、舍利弗等先並事火，翻邪入正，便得上果，感佛恩深常隨侍佛，故為同聞眾也。比丘，此翻除饉。眾生薄福，在因無法自資、得報多所饉乏；出家戒行是良福田，能生物善，除因果之饉乏也。或言無翻，名含三義：一、破惡者，如初得戒，即言比丘以三羯磨發善律儀，故言破惡。二、怖魔者，既能破惡，魔羅恐其出我界域、化我眷屬，故生驚怖。三、乞士者，出家之人內修道德、遠離四邪，告求資身，故名乞士。此之三義通初後心，經家所列皆後心耳。

First, within the number: "With" (與) means together. As for "one thousand two hundred and fifty," the three Kāśyapa brothers had one thousand disciples: Uruvilvā had five hundred, Gayā had three hundred, and Nadī had two hundred; Śāriputra and Maudgalyāyana had two hundred and fifty disciples. Kāśyapa, Śāriputra, and the others had all previously served fire; turning away from the heterodox and entering the orthodox, they immediately attained the higher fruition. Deeply moved by the Buddha's grace, they constantly followed and attended the Buddha, and therefore they constituted the assembly who heard [the teaching] together. "Bhikṣu" is translated here as "dispeller of famine." Sentient beings have meager merit: at the stage of the cause, lacking the Dharma to sustain themselves, they obtain retribution that is mostly starved and deficient; the renunciant's precept-practice is an excellent field of merit, able to generate wholesome qualities in living beings and eliminate the famine and deficiency of both cause and effect. Alternatively, some say it is not translated, for the name contains three meanings: First, "destroyer of evil": as when one first receives the precepts, one is then called a bhikṣu because through the three karmavācanā procedures one generates the wholesome vinaya discipline; hence it is called destroying evil. Second, "terrifier of Māra": since one can destroy evil, Māra fears that one will leave his realm and convert his retinue, and so he feels shock and terror. Third, "mendicant": a renunciant inwardly cultivates virtue and the Path and stays far away from the four heterodox livelihoods, begging for food to sustain the body; hence he is called a mendicant. These three meanings apply through both the initial mind and the final mind; those listed by the compiler of the sūtra all pertain to the final mind.