大宋僧史略 1.15

1.15

又案五運圖云。東周平王四十八年戊午歲佛生。此說則無憑也。又依道安羅什紀及石柱銘云。周十八主桓王五年乙丑歲佛生。此亦非也。

Also, the Wuyun tu says that the Buddha was born in the Wuwu year, the forty-eighth year of King Ping of the Eastern Zhou; this theory, however, lacks evidence. Furthermore, according to the records of Dao'an and Kumārajīva as well as the stone pillar inscriptions, the Buddha was born in the Yichou year, the fifth year of King Huan, the eighteenth ruler of Zhou; this too is incorrect.