難行

難行(nán xíng)　“hard practices”　Cf. 苦行(kŭ xíng);

HD. 11.901a(宋代); DK. 11.1050a(法華經);

ps-L. 35b22.釋迦如來於無量劫難行苦行，積功累德，求菩提(v.l. 薩[= J, FS etc.])道，未曾止息(p);

not found at K. 263.9; not found at Z. 106a4; STF. 197c23.勤苦;