Sahih Muslim Book 020, Hadith Number 4723.
Chapter : Keeping the good of the animals in view during a journey and forbiddance from halting for the night on the track.
It has been narrated on the authority of Abu Huraira that the Messenger of Allah (may peace be upon him) said: When you journey through a fertile land, you should (go slow and) give the camels a chance to graze in the land. When you travel In an arid (land) where there is scarcity of vegetation, you should quicken their pace (lest your camels grow feeble and emaciated for lack of fodder). When you halt for the night, avoid (pitching your tent on) the road, for it is the abode of noxious little animals at night.