From Sahih Muslim (Hadith 6021):
Anas 'b. Malik reported that a person requested Allah's Apostle (ﷺ) to give him a very large flock and he gave that to him. He came to his tribe and said:O people, embrace Islam. By Allah, Muhammad donates so much as if he did not fear want. Anas said that the person embraced Islam for the sake of the world but later he became Muslim until Islam became dearer to him than the world and what it contains
Reference: Muslim 6021