織當訪婢

if it's weaving, ask the maid (idiom); when managing a matter, consult the appropriate specialist

to weave / to knit

to be / to act as / manage / withstand / when / during / ought / should / match equally / equal / same / obstruct / just at (a time or place) / on the spot / right / just at

at or in the very same... / suitable / adequate / fitting / proper / to replace / to regard as / to think / to pawn / (coll.) to fail (a student)

(bound form) to visit / to call on / to seek / to inquire / to investigate

slave girl / maid servant