It was narrated from Muadh bin' Abdullah bin Khubaib, from his father, that his paternal uncle said: "We were sitting in a gathering, and the Prophet P.B.U.H came with traces of water on his head. One of us said to him: 'We see that you are of good cheer today: He said: 'Yes, praise is to Allah: Then he spoke to the people about being rich. He said: 'There is nothing wrong with being rich for one who has piety, but good health, for one who has piety is better than niches, and being of good cheer is a blessing." (Sahih)