It is narrated from Sayyiduna Thawban (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "The width of my cistern (Hawd) is from Aden to Oman. Its water is whiter than snow and sweeter than honey. Most of those who will come to it will be the poor emigrants, who are now disheveled and wear dirty clothes. They do not marry well-off women, closed doors are not opened for them, and they fulfill their responsibilities, but their rights are not fulfilled."