法苑珠林 36.8

36.8

又菩薩本行經云。昔佛在世與諸比丘及與阿難。從欝卑羅延國遊行村落。時天盛熱無有陰涼。有放羊人見佛涉熱。即起淨心編草作蓋。用覆佛上遊隨佛行。去羊大遠。放蓋擲地。還趣羊邊。佛便微笑告阿難言。此放羊人以恭敬心。而以草蓋用覆佛上。以此功德十三劫中不墮惡道。天上人間生尊貴家快樂無極。常有自然七寶之蓋。而在其上。竟十三劫出家修道。成辟支佛名阿耨婆達。

Also, the Bodhisattva-cariyā-sūtra states: Formerly, when the Buddha was in the world, he wandered through villages from the country of Upariṭṭha together with the bhikṣus and Ānanda. At that time, the weather was scorching hot with no shade. A shepherd, seeing the Buddha walking in the heat, gave rise to a pure mind, wove grass into a canopy, and used it to cover the Buddha as he wandered along following him. Having gone a great distance from his sheep, he threw the canopy to the ground and returned to them. The Buddha smiled and told Ānanda, “With a reverent mind, this shepherd covered the Buddha with a grass canopy. By this merit, for thirteen kalpas he will not fall into evil paths; born into noble families in heaven and the human world, his joy will be limitless. Naturally, there will always be a seven-jewelled canopy over him. After the thirteen kalpas, he will go forth, cultivate the Way, and become a pratyekabuddha named Anavatapta.”