It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: Do not drink water directly from a waterskin (or, in present times, from a tap) by putting your mouth to it; rather, drink by taking it in your hands.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 6217
Hadith Gradingحکم دارالسلام:إسناده ضعيف لإبهام الرجل الراوي عن ابن عمر .