Kautilya's Arthashastra 2.24.31

2.24.31

yathākālaṃ ca sasyādi jātaṃ jātaṃ praveśayet /
na kṣetre sthāpayet kiṃcit palālam api paṇḍitaḥ //

Grains and other crops shall be collected as often as they are harvested. No wise man shall leave anything in the fields, nor even chaff. Crops, when reaped, shall be heaped up in high piles or in the form of turrets. The piles of crops shall not be kept close, nor shall their tops be small or low. The threshing floors of different fields shall be situated close to each other. Workmen in the fields shall always have water but no fire.