तुषारदुर्दिनमगाधनिम्नप्रायं गहनतृणवृक्षं वा देशं ग्रीष्मे यायात् ॥ कZ_०९.१.३८ ॥
tuṣāra-durdinam agādha-nimna-prāyaṃ gahana-tṛṇa-vṛkṣaṃ vā deśaṃ grīṣme yāyāt
他应在夏季出征,攻打多霜冻且阴天连绵的地区,或地势多深洼,或草木稠密之地。
Summer reduces cold and weather impediments and can improve passability and operational tempo in difficult terrain.