It is narrated from Sayyiduna Malik bin Nadlah al-Jushami (may Allah be pleased with him) that he came to the Prophet (peace and blessings be upon him), and the Messenger of Allah (peace and blessings be upon him) saw him dishevelled, dusty and in the appearance of a Bedouin, so he said to him: "What wealth do you have?" He said: Every kind of wealth Allah has given me. He (peace and blessings be upon him) said: "Indeed, when Allah bestows a blessing upon a servant, He loves that it be seen upon him."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 16672