अहःसम्नाहपरिश्रान्तानपराह्नेऽभिहन्यात् ॥ कZ_१०.३.२१ ॥
ahaḥsamnāha-pariśrāntān aparāhne 'bhihanyāt
अहःसम्नाहपरिश्रान्तान् अपराह्णेऽभिहन्यात्॥
Readiness has daily peaks and troughs; attack when the opponent’s coordination and stamina are predictably lowest.