‏البيوع : Hadeeth No:3801 Abu Huraira (Allaah be pleased with him) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Do not withhold excess of water, so that you may prevent the growth of herbage....

‏الجهاد والسير‏ : Hadeeth No:4454 It has been narrated on the authority of Anas b. Malik who said that the Messenger of Allaah (sallAllaahu alayhi wa sallam) allowed Umm Sulaim and some other women of the Ansar to accompany him when he went to war; they would give water (to the soldiers) and would treat the wounded....