釋氏要覽 2.158

2.158

僧祇律云。過去有一婆羅門。於曠野造井。以給行人。至暮有群野干。趣井飲水。其野干主。便內頭汲罐中飲已。戴起高舉。撲破而去。諸小野干諫主曰。若樹葉可用者。猶護惜之。況此利濟之具。何忍壞也。主曰。我但戲樂耳。損壞既多。施者懷恨。乃作木罐用機。故頭可入不可出。置于井側。執杖屏處伺之。及暮果至作戲如初。內頭入罐。求撲不脫。婆羅門以。杖打死時。空有神說偈曰。知識慈心語。狼戾不受諫。守頑招此禍。自喪其身命。

The Mahāsāṃghika Vinaya says: In the past, there was a brāhmaṇa who dug a well in a wilderness to provide for travelers. At dusk, a pack of jackals went to the well to drink water. The leader of the jackals stuck its head into the drawing bucket, and having drunk, lifted it high on its head, dashed it down, broke it, and left. The young jackals admonished their leader, saying, 'If even tree leaves are useful, one still protects and cherishes them; how much more so this utensil for benefiting and aiding others—how can you bear to break it?' The leader said, 'I was only having fun.' Because many were damaged, the donor harboured resentment. He then made a wooden bucket with a mechanism so that a head could enter but could not come out. He placed it beside the well and waited in a hidden place holding a staff. When dusk came, [the jackal] indeed arrived and played as before. It stuck its head into the bucket, and trying to smash it, could not get free. The brāhmaṇa beat it to death with the staff. At that time, a spirit in the air spoke a verse: 'When a good friend speaks with a compassionate heart, / One who is stubborn and contrary will not accept admonition. / Clinging to obstinacy invites this calamity, / Causing the loss of one's own physical life.'