Sayyiduna Amr bin Hurayth (may Allah be pleased with him) said: My brother Sa'id bin Hurayth (may Allah be pleased with him) told me (he was a Companion of the Prophet (peace and blessings be upon him), and he was an excellent brother): I wished to go to Kufah, so I asked his permission to sell the house, and he permitted its sale. Then my brother said to me: "O my brother, hold your hand back from the price of this house and do not reduce anything from it, as far as you are able, for I heard the Messenger of Allah (peace and blessings be upon him) say: 'Whoever among you sells a house or property, he is not blessed in it unless he puts it into something like it.'" So I accepted my brother's word as true and, hoping for the blessing of the saying of the Messenger of Allah (peace and blessings be upon him), I bought part of this house of ours with that money, and Allah gave us in exchange for it what was better.
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5505