‘ Amr b. Shu'aib, on his father’s authority, told that his grandfather reported God’s messenger as saying, “God likes the mark of His favour to be seen on his servant.” (People whom God has prospered should wear clothes suitable for their station, for the poor may recognise them as people able to give charity. The learned should not conceal their learning, so that others may benefit from it)
Tirmidhi transmitted it.
Suwaid b. Wahb quoted a son of a Companion of God’s messenger who said his father reported God’s messenger as saying, “He who gives up wearing beautiful garments when he is able to do so (out of humility, as is stated in a version) will be clothed by God with the robe of honour, and he who marries for God's sake will be crowned by God with the crown of the kingdom.”
Abu Dawud transmitted it, and Tirmidhi transmitted the tradition about the clothing on Suwaid’s authority on the authority of Mu'adh b. Anas.
Jabir said God’s messenger came to pay them a visit, and seeing a dishevelled man whose hair was untidy he said, “Could this man not find something to make his hair lie down ?” He saw a man wearing dirty clothes and said, “Could this man not find something to wash his garment with?”
Ahmad and Nasa’i transmitted it.
I came to God’s messenger wearing a poor garment and he asked me whether I had any property. When I replied that I had, he asked me what kind it was, and I said, "Every kind; God has given me camels, cattle, sheep, horses and slaves.” He then said, “When God gives you property let the mark of His favour and honour to you be seen.”
Ahmad and Nasa'i transmitted it. In Sharh as-sunna it has the wording in al-Masabih.