Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) says that Sayyiduna Umar (may Allah be pleased with him) stood on the pulpit of the Prophet (peace and blessings be upon him) and delivered a sermon. He praised Allah and extolled Him, then said: "Amma ba'd (to proceed): The prohibition of wine was revealed on the day it was revealed, and it is made from five things: (1) grapes, (2) dates, (3) honey, (4) wheat and (5) barley; and wine is whatever clouds the intellect."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الأشربة والحد فيها / 17346