Matsya Purana 240.27

240.27

yavasendhanasaṃyukta kālaḥ pārthiva! haimanaḥ.
śaradvasantau dharmajña! kālau sādhāraṇau smṛtau .. 240.26 ..

During the winter season a king should have a good store of straw and fire wood to enable him to vanquish his foe Vernal season is known as the best time A king should set out in the summer season against a country that is wetty and covered with snow—26