अमात्यसम्पदुक्ता पुरस्तात् ॥ कZ_०६.१.०७ ॥
amātyasampad uktā purastāt
The excellence of ministers (amātya-sampat) has been stated earlier.
Book 6 is organizing the state by its constituent limbs; ministerial qualities are foundational and already elaborated elsewhere.