It is narrated from Sayyiduna Thawban (may Allah be pleased with him) that he said: The Messenger of Allah (peace and blessings be upon him) said: "Indeed, my Pool extends from Aden to Oman; its cups are as many as the stars, and its water is whiter than snow and sweeter than honey. The first to come to it will be the poor among the Muhajirun." We said: O Messenger of Allah, describe them to us. He (peace and blessings be upon him) said: "Those with dishevelled heads and soiled clothes, who cannot marry women accustomed to luxury, and for whom the doors (of the wealthy) are not opened; those who give what they owe, but are not given what is owed to them."
Hadith Referenceالمعجم الكبير للطبراني / باب الثاء / 1430