道宣律師感通錄 1.16

1.16

又問。見今泌州北山石窟中山。常有光明者何。答此窟迦葉佛釋迦佛二時備有。往昔周穆王第二子。造迦葉佛像。

I asked again: "Why is it that on the mountain of the stone caves on the northern mountain of Mizhou, there is constantly bright light?" He replied: "This cave was fully provided for in both the eras of Kāśyapa Buddha and Śākyamuni Buddha. In the past, the second son of King Mu of Zhou made an image of Kāśyapa Buddha."