the Prophet said: "When one of you breaks his fast, then let him do so with dried dates. And whoever does not find dates, then water, for it is purifying."
Jami` at-Tirmidhi Book 8, Hadith 14
← Previous Hadith the Messenger of Allah said: "Whoever has dried dates, then let him break the fast with that, and whoever does not, then let him break the fast with water, for indeed water is purifying."

Jami` at-Tirmidhi Book 8, Hadith 13 Next Hadith → "The Messenger of Allah would break the fast with fresh dates before performing Salat. If there were no fresh dates then (he would break the fast) with dried dates, and if there were no dried dates then he would take a few sips of water."

Jami` at-Tirmidhi Book 8, Hadith 15