“Bhante nāgasena, ‘vicchikassa ekaṃ aṅgaṃ gahetabban’ti yaṃ vadesi, katamaṃ taṃ ekaṃ aṅgaṃ gahetabban”ti? “Yathā, mahārāja, vicchiko naṅgulāvudho naṅgulaṃ ussāpetvā carati; evameva kho, mahārāja, yoginā yogāvacarena ñāṇāvudhena bhavitabbaṃ, ñāṇaṃ ussāpetvā viharitabbaṃ. Idaṃ, mahārāja, vicchikassa ekaṃ aṅgaṃ gahetabbaṃ. Bhāsitampetaṃ, mahārāja, therena upasenena vaṅgan­ta­puttena—

‘Ñāṇakhaggaṃ gahetvāna,
viharanto vipassako;
Parimuccati sabbabhayā,
duppasaho ca so bhave’”ti.

­Vicchi­kaṅ­gapañho catuttho.