爲(fwéi)(3) an interrogative particle, used at the end of a question　

HD. 6.1107.*; Yu Liming 1993 : 154f.(漢書, 三國志, 支謙譯經 etc.), Wei Pei-chuan 2004 : 280f.(道行f般若經, 六度集經), Long 2004 : 223(長阿含經 etc.), Liu Kaihua 2008 : 125f. (六度集經 etc.);

Lk. 428a15. 邠那(←祁)文陀弗白佛言：“尊者須菩提，佛使説般若波羅蜜，乃(←及)至説摩訶衍事爲？” (p)

not found at AS. 12.26 = R. 24.20 = AAA. 108.21.; ps-ZQ. 481a28. …耶; Zfn. 511a1.…爲; not found at Kj. 539b4.; Xz(I). 767b26.何故; Xz(II). 869a7.何故; Sh. 590c23.何故; not found at Tib.Pk. 14b5 = D. 14a6.;