阿彌陀經疏 1.100

1.100

「迦留陀夷」者，《正法華》云：此名黑曜。毘奈耶律云：名黑光。《增一阿含》云：迦留陀夷其身極黑，夜行乞食，時天大闇而至他家，天有閃電，彼家婦人身正懷孕，於電光中見謂是黑鬼，怖而墮胎，乃謂之曰：「汝何鬼耶？」答曰：「我瞿曇弟子，今來乞食。」彼女人即發聲惡罵。如來知之，即勅比丘，從今日已後不得過中食，亦不得預乞食。

Regarding "Kālodayin": The *Saddharmapuṇḍarīka-sūtra* translated by Dharmarakṣa states that this name means "Black Radiance." The *Vinaya* states that he is named "Black Light." The *Ekottarika-āgama* states: Kālodayin's body was extremely black. As he walked at night begging for food, the sky was very dark when he arrived at another's home. There was lightning in the sky. The woman of that house was pregnant; in the flash of lightning, she saw him, thought he was a black demon, was terrified, and miscarried. She said to him: "What kind of demon are you?" He replied: "I am a disciple of Gautama, come now to beg for food." That woman immediately cried out with vile curses. The Tathāgata learned of this and ordered the monks: From this day forward, they must not eat past noon, nor may they beg for food in advance.