Arthashastra
अनृत्व् अभूमि प्राप्तयोर् अनृतु प्राप्तं यथ ऋतु युग्य शस्त्र आवरणं युध्येत, न अभूमि प्राप्तम् अवरुद्ध प्रसार व्यायामम् ॥
Of armies, either suffering from inclemency of weather or driven to an unsuitable ground, that which is suffering from inclemency of weather may be taken to fight after providing it with weapons and dress appropriate for the season, but not the army on an unfavourable ground obstructing its movements.
english translation
anRtv abhUmi prAptayor anRtu prAptaM yatha Rtu yugya zastra AvaraNaM yudhyeta, na abhUmi prAptam avaruddha prasAra vyAyAmam ॥
hk transliteration by Sanscript