Regarding sipping water
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا يُونُسُ بْنُ مُحَمَّدٍ، حَدَّثَنِي فُلَيْحٌ، عَنْ سَعِيدِ بْنِ الْحَارِثِ، عَنْ جَابِرِ بْنِ عَبْدِ اللَّهِ، قَالَ دَخَلَ النَّبِيُّ صلى الله عليه وسلم وَرَجُلٌ مِنْ أَصْحَابِهِ عَلَى رَجُلٍ مِنَ الأَنْصَارِ وَهُوَ يُحَوِّلُ الْمَاءَ فِي حَائِطِهِ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِنْ كَانَ عِنْدَكَ مَاءٌ بَاتَ هَذِهِ اللَّيْلَةَ فِي شَنٍّ وَإِلاَّ كَرَعْنَا " . قَالَ بَلْ عِنْدِي مَاءٌ بَاتَ فِي شَنٍّ .
Jabir b. ‘abd Allah said: 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).