四分律比丘含注戒本 1.95

1.95

所謂行殺也。若自殺，若教殺，若遣使殺，若往來使殺，若重使殺，若展轉使殺，若求男子殺，若教人求男子殺，若求持刀人殺，若教人求持刀人殺，若身現相，若口說，若身、口現相，若教使歎，若遣書，若教遣書，若坑陷，若倚撥，若與藥，若安殺具，及餘方便殺者是也。

This refers to carrying out killing. Whether killing oneself, instructing another to kill, sending an emissary to kill, sending an emissary back and forth to kill, repeatedly sending an emissary to kill, sending an emissary successively through intermediaries to kill, seeking a man to kill, instructing someone to seek a man to kill, seeking a swordsman to kill, instructing someone to seek a swordsman to kill, manifesting physical gestures, speaking verbally, manifesting bodily and verbal gestures, instructing an emissary to praise [death], sending a letter, instructing someone to send a letter, digging a pitfall, setting a trap, giving poison, setting up killing implements, and other expedient means to kill—these are it.