Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) said: I heard Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) say that the Messenger of Allah (peace and blessings be upon him) gave him a gift. I said: "Give it to someone in need, (O Messenger of Allah (peace and blessings be upon him))," until he (peace and blessings be upon him) gave me some wealth. I said: "Give this to someone in need," and the Messenger of Allah (peace and blessings be upon him) said to me: "Take it; keep it with you or give it in charity. Whatever wealth comes to you without your having been eager for it and without your having asked for it, take it; and whatever does not come, do not make yourself greedy for it."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الهبات / 12040