Abu Hurairah narrated that :
the Messenger of Allah said: "Indeed the first of what will be asked about on the Day of Judgment – meaning the slave (of Allah) being questioned about the favors – is that it will be said to him: 'Did We not make your body, health, and give you of cool water to drink?'" (RU)
English reference (RU): Vol. 5, Book 44, Hadith 3358 (RU)
Arabic reference (RU): Book 47, Hadith 3683 (RU)