Mahabharata 12.136.14

तस्माद्विश्वसितव्यं च विग्रहं च समाचरेत्देशं कालं च विज्ञाय कार्याकार्यविनिश्चये

tasmādviśvasitavyaṃ ca vigrahaṃ ca samācaretdeśaṃ kālaṃ ca vijñāya kāryākāryaviniścaye

Our plain-language meaning of this verse is waiting for scholar review.