LEFT OVER WATER H H 783 "The Prophet, praise and peace be upon him, went with a Companion to the house of a man from the Ansar and said, 'If you have any water left in your water-skin from last night give it to us to drink otherwise we will drink from a stream.'" R 783 Bukhari via Jabir who related that the Messenger of Allah, praise and peace be upon him, said this.
775- وعن جابر رضي الله عنه : أنَّ رسول الله صلى الله عليه وآله وسلم دَخَلَ عَلَى رَجُلٍ مِن الأَنْصَارِ ، وَمَعَهُ صَاحِبٌ لَهُ ، فَقَالَ رسول الله صلى الله عليه وآله وسلم : "إنْ كَانَ عِنْدَكَ مَاءٌ باتَ هذِهِ اللَّيْلَةَ في شَنَّةٍ وَإلاَّ كَرَعْنَا" رواه البخاري . " الشنّ" : القِربة .