Muwatta Imam Malik (Riwayat Ibn al-Qasim)

And with the same chain of narration, it is narrated from (Sayyiduna Abu Huraira, may Allah be pleased with him) that the Messenger of Allah, peace and blessings be upon him, said: "The poor person who goes around among people is not the one who returns with one or two morsels or one or two dates." The people said: O Messenger of Allah! Then who is the poor person? He, peace and blessings be upon him, said: "The person who does not have enough wealth to fulfill his needs, and people do not realize his (poverty) so that charity may be given to him, and he does not get up to ask people (for help) either."