HD. 12.165a(民國); not found at DK. 11.774.;
104a1.佛以手指開七寶寺講堂之戸。亘然通徹，晃若日出。譬如開於大國城門，而以管籥去其關軸，内外無礙(p)
K. 249.2.argala-; L. 33b27.關鑰;