三脱(sān tuō) “the three (gates of) emancipation”
not found at HD. 1.233.; not found at DK. 1.165.;
99b4.不以花、香、伎乐供养为供养也。当了三脱，至三达智、无极之慧，乃为供养(p)
K. 224.1-; not found at L. 30b29;