宋高僧傳 24.20

24.20

釋法朗，姑蘇人也。稟質溫潤，約心堅確，誦《觀音明呪》，神効屢彰。京闕觀光，人皆知重。龍朔二年，城陽公主有疾沈篤，尚藥供治，無所不至。公主乃高宗大帝同母妹也，友愛殊厚，降杜如晦子荷。荷死，再行薛瓘。既疾綿困，有告，言朗能持祕呪，理病多瘳。及召朗至，設壇持誦，信宿而安，賞賚豐渥。其錢帛珍寶，朗迴為對面施。公主奏請改寺額曰觀音寺，以居之。此寺本隋靈感寺，開皇三年置。文帝移都，多掘城中陵園塚墓，徙葬郊野，而置此寺。至唐武德四年廢，至此更題額。朗尋終于此寺焉。

Śramaṇa Falang was a native of Gusu. His temperament was gentle and moist, his discipline of mind firm and resolute. He recited the Avalokiteśvara Vidyā-dhāraṇī, and its spiritual efficacy was manifest repeatedly. When he went to sightsee in the capital, everyone came to know and respect him. In the second year of the Longshuo era, Princess Chengyang fell seriously ill; the imperial physicians provided treatment, leaving no method untried. The princess was the younger sister of the Great Emperor Gaozong by the same mother, and his fraternal love for her was exceptionally deep. She had married Du He, son of Du Ruhui. After He died, she remarried Xue Guan. As her illness dragged on critically, someone reported that Lang could hold secret dhāraṇīs and that those he treated mostly recovered. When Lang was summoned to arrive, he established an altar and engaged in recitation; within two nights she recovered, and the rewards bestowed were lavish. As for these coins, silks, and precious gems, Lang turned them all into face-to-face almsgiving. The princess memorialized the throne requesting to change the temple's placard to Guan'yin Temple (Avalokiteśvara Temple) for him to dwell in. This temple was originally the Linggan Temple of the Sui, founded in the third year of Kaihuang. When Emperor Wen moved the capital, he excavated many of the tombs and cemeteries within the city walls, relocated their burials to the suburbs, and established this temple. In the fourth year of the Wude era of the Tang, it was abolished, and at this time its placard was altered again. Lang passed away soon after in this temple.