It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: My cistern is as vast as the distance between Aden and Oman, and its water is colder than ice, sweeter than honey, and more fragrant than musk. The number of its drinking vessels will be equal to the stars. Whoever drinks from it once will never feel thirst again. The first to come to drink from it will be the poor emigrants. A man asked: O Messenger of Allah! Who are these people? He (peace and blessings be upon him) said: They are those whose hair is disheveled, faces are withered, clothes are dirty and worn, doors are not opened for them when they come, and they are not married to well-off women. They fulfill all their responsibilities, but are unable to obtain their rights in the same way.