法華文句記 4.79

4.79

但動執生疑之言，言兼兩向。何者？若在爾時大眾中下，意明由前略開動其舊執生其新疑，若在三偈半文，意明此之略開動彼舊執令生新疑，故復名長行之文為騰疑致請，執既被動因茲有疑，今先騰疑後方致請，是故此文兩向用之，非參錯也。若以此文為騰疑致請，則應更開章云「略開三為二，先長行并十七行半偈歎二智，次三行半正略開顯動執生疑。」文云「執動疑生」者，由前略開動其執故執動，由前生其疑故疑生，疑既生已，今但致請，是故章首但云「騰疑致請」。

It is simply that the phrase 'shaking attachments and giving rise to doubt' applies in both directions. How so? If located from 'at that time in the great assembly' downward, the intention is to clarify that, due to the preceding brief opening, their old attachments were shaken and their new doubts arose. If located in the three and a half verses, the intention is to clarify that this brief opening shook their old attachments and caused new doubts to arise; hence the prose text is again called expressing doubt and making the request. Since attachments were shaken, doubts arose because of this; now they first express their doubts and only afterwards make the request. Therefore, this text is used in both directions and is not confused. If this text is taken as expressing doubt and making the request, then one should further open the chapter division, saying: 'Briefly opening the three is divided into two: first, the prose together with seventeen and a half verses of praise for the two wisdoms; next, three and a half verses directly and briefly opening and revealing, shaking attachments and giving rise to doubt.' When the text says 'attachments were shaken and doubts arose': because the preceding brief opening shook their attachments, their attachments were shaken; because it gave rise to their doubts, doubts arose. Once doubts have arisen, now they merely make the request; therefore, the head of the chapter merely says 'expressing doubt and making the request'.