Arthashastra
सर्वा वा ह्रस्व कालाः स्युर् यातव्याः कार्य लाघवात् । दीर्घाः कार्य गुरुत्वाद् वा वर्षा वासः परत्र च ॥
When the work to be accomplished is small, march against all kinds of enemies should be of short duration; and when it is great, it should also be of long duration; during the rains, encampment should be made abroad.
english translation
sarvA vA hrasva kAlAH syur yAtavyAH kArya lAghavAt । dIrghAH kArya gurutvAd vA varSA vAsaH paratra ca ॥
hk transliteration by Sanscript