法苑珠林 41.42

41.42

又普廣經云。四輩弟子若行齋戒。心當存想請十方僧。不擇善惡持戒毀戒高下之行。到諸塔寺請僧之時。僧次供養無別異想。其福最多無量無邊。若值羅漢四道果人及大心者。緣此功德受福無窮。一聞說法可得至道無上涅槃。

Also, the Puguang jing says: 'If disciples of the four classes observe the vegetarian fast, they should mentally resolve to invite the saṃgha of the ten directions, without picking and choosing between good and evil, observing precepts and violating precepts, or high and low conduct. When going to stūpas and monasteries to invite the saṃgha, making offerings in the order of the saṃgha without discriminatory thoughts brings the greatest merit, immeasurable and boundless. If one encounters arhats who are persons of the four fruits of the path, or those of great aspiration, due to this merit one will receive unending blessings. Hearing the preaching of the Dharma just once, one can attain the supreme path of unexcelled nirvāṇa.'