The Buddha was once staying at the Migāramātupāsāda, and on the day of the pavārana he summoned the five hundred arahants who were with him and asked if they had any fault to find with him.
Sāriputta, speaking for them, uttered the Buddha's praises, and the Buddha, in his turn, spoke of Sāriputta's greatness and of the blamelessness of the arahants. Thereupon Vangīsa, also present, extolled the Buddha in verse. S.i.190f.; also Thag.vs.1234ff.