法苑珠林 36.19

36.19

又百緣經云。佛在舍衛國祇樹給孤獨園。爾時世尊將諸比丘。著衣持鉢。將詣乞食至一衖中。有一婦女抱一小兒。在衖坐地。時彼小兒逢見世尊心懷歡喜。從母索華。母即與買。小兒得已。持詣佛所散於佛上。於虛空中變成華蓋隨佛行住。小兒見已。甚大歡喜。發大誓願以此供養善根功德。使我來世得成正覺。過度眾生如佛無異。爾時世尊。見此小兒發是願已。佛即微笑。從其面門出五色光。繞佛三匝還從頂入。爾時阿難前白佛言。如來尊重不妄有笑。以何因緣今日微笑。唯願世尊敷演解說。佛告阿難。汝今見此小兒以華散。我於未來世不墮惡趣。天上人中常受快樂。過十三阿僧祇成辟支佛。號曰華盛。廣度眾生不可限量。是故笑耳。爾時諸比丘。聞佛所說歡喜奉行。

Furthermore, the Avadānaśataka states: The Buddha was in the country of Śrāvastī, at the Jetavana, the park of Anāthapiṇḍada. At that time, the World-Honoured One, leading the monks, put on their robes, took their bowls, and went to beg for food, entering an alley. There was a woman holding a small boy, sitting on the ground in the alley. When that small boy happened to see the World-Honoured One, he felt joyful in his heart and asked his mother for flowers. His mother immediately bought them for him. Having received them, the boy took them to the Buddha's place and scattered them over the Buddha. In the empty sky, they transformed into a flower canopy that followed the Buddha as he walked and stood. When the boy saw this, he rejoiced greatly and made a great vow: 'By the merit of these roots of goodness from this offering, may I in a future life attain true awakening and ferry sentient beings across, no different from the Buddha!' At that time, when the World-Honoured One saw this small boy make this vow, the Buddha smiled, and from his mouth issued light of five colours, which circled the Buddha three times and entered back into the crown of his head. At that time, Ānanda came forward and addressed the Buddha, saying: 'The Tathāgata is dignified and does not smile without cause. For what reason do you smile today? May the World-Honoured One please explain and expound it.' The Buddha told Ānanda: 'Did you see this small boy scatter flowers over me? In a future life, he will not fall into evil destinies, and he will constantly experience pleasure among devas and humans. Passing through thirteen asaṃkhyeyas, he will become a pratyekabuddha named Blossoming Flower (Huāsheng), widely ferrying across immeasurable sentient beings. It was for this reason that I smiled.' At that time, having heard what the Buddha said, the monks rejoiced and put it into practice.