Kamata states that the ascriptions to Yan Fotiao 嚴佛調 for the Ahan kou jie 阿含口解, the Shi’er yinyuan jing 十二因縁經 [cf. 阿含口解十二因縁經 T1508 ascribed to 安玄and 嚴佛調], and the Pusa nei xi liu poluomiduo jing 菩薩内習六波羅蜜經 (T778) are incorrect, claiming that the only translation work of Yan Fotiao is the Ugra-paripṛcchā 法鏡經 T322, which he co-translated with An Xuan 安玄.