俱舍論疏 18.40

18.40

論「若爾喻說至謂害父殺阿羅漢」，引譬喻經難。佛在世，南印度國有一國王，以國委付太子始欠持，往室羅筏歸佛出家，得阿羅漢果。太子無道，專行非法暴亂百姓。有舊老臣至父王所具陳上事，請王還國示誨太子。父王許請，遂還本國。太子佞臣恐被誅戮，佞太子言：「父王今欲還來奪太子位，請遣一使在路殺。」太子納此佞言，遂遣使殺。父王知業因緣應合子殺，甘心受死。佛知斯事，遣弟子告彼太子始欠持言：「汝已造二逆，謂害父、殺阿羅漢。」始欠持，此言頂髻。

The Śāstra states: "If so, then a metaphorical text says... killing a father and slaying an arhat", citing an Avadāna-sūtra to raise an objection. While the Buddha was in the world, in a country of South India there was a king who entrusted the kingdom to the crown prince Śikhaṇḍin and went to Śrāvastī to take refuge in the Buddha, go forth, and attain arhatship. The crown prince was unprincipled, practicing exclusively what was unlawful and tyrannizing the common people. An old, veteran minister went to the father king and recounted the above events in full, requesting the king to return to his country to instruct and admonish the crown prince. The father king granted the request and returned to his home country. The crown prince's sycophantic minister feared being executed and flattered the prince, saying: 'The father king now wishes to return to usurp the crown prince's throne; please send an emissary to kill him on the road.' The crown prince accepted these flattering words and sent an emissary to kill him. The father king knew through the causes and conditions of karma that it was fitting for him to be killed by his son, and willingly accepted death. The Buddha, knowing this matter, sent a disciple to tell the crown prince Śikhaṇḍin: 'You have already committed two anantaryas, namely killing your father and slaying an arhat.' Śikhaṇḍin means 'topknot' in Chinese.