經律異相 10.20

10.20

佛語賢者阿難。乃往過去時世有王。號日月明。端正姝好威神巍巍。從宮而出道見盲者。窮困飢餓隨道乞匂。往趣王所。白王言曰。王獨尊貴安隱快樂。我獨貧窮加復眼盲。王見哀之謂於盲者有何等藥得療卿病。盲者答曰。唯得王眼能愈我眼。時王自取兩眼持施盲者。其心清然無一悔意。月明王者即我身是。佛言須彌山尚可知斤兩。我眼布施不可稱計（出彌勒所問本願經）。

The Buddha said to the Venerable Ānanda: "In the past, there was a king named Sunlight and Moonlight, handsome and pleasing, with majestic supernatural dignity. Coming out from his palace, he saw a blind man on the road, destitute and starving, begging along the path. Approaching the king, he said to the king: 'The king alone is noble, secure, and joyful; I alone am poor, and blind to boot.' The king took pity on him and said to the blind man: 'What medicine can cure your ailment?' The blind man replied: 'Only obtaining the king's eyes can heal my eyes.' Then the king took out his own two eyes and gave them to the blind man, his mind pure and clear, without a single thought of regret. The king Moonlight was none other than myself. The Buddha said: 'The weight of Mount Sumeru can still be measured in catties, but my giving of eyes cannot be calculated.'" (Extracted from the Sūtra on Maitreya's Question on Past Vows).