The Prophet ﷺ went to visit a man of the Ansar accompanied by one of his Companions who was watering his garden. The Messenger of Allah ﷺ said: If you have any water which has remained over night in a skin (we should like it), or shall sip (from a streamlet).  

دَخَلَ النَّبِيُّ ﷺ وَرَجُلٌ مِنْ أَصْحَابِهِ عَلَى رَجُلٍ مِنَ الأَنْصَارِ وَهُوَ يُحَوِّلُ الْمَاءَ فِي حَائِطِهِ فَقَالَ رَسُولُ اللَّهِ ﷺ إِنْ كَانَ عِنْدَكَ مَاءٌ بَاتَ هَذِهِ اللَّيْلَةَ فِي شَنٍّ وَإِلاَّ كَرَعْنَا قَالَ بَلْ عِنْدِي مَاءٌ بَاتَ فِي شَنٍّ