Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) narrates: The Prophet (peace and blessings of Allah be upon him) stood up and while addressing the people in a sermon, he said: By Allah! O people! What I fear most for you is that Allah the Exalted will display the adornment and beauty of the world before you. A man asked: O Messenger of Allah (peace and blessings of Allah be upon him)! Will goodness bring evil? The Prophet (peace and blessings of Allah be upon him) remained silent for a while, then he asked: What did you say? That person replied: I asked, O Messenger of Allah (peace and blessings of Allah be upon him)! Will goodness bring evil? The Prophet (peace and blessings of Allah be upon him) said: Indeed, goodness only brings goodness. But its example is like that of the spring season (which causes animals that overeat) to die or brings them close to destruction. However, the case of the animal that eats greenery is different; when its belly is full, it comes into the sunlight, then it urinates and defecates, then grazes and returns. So, whoever acquires wealth along with its due right, there is blessing placed in it for him, and whoever acquires wealth unjustly, his example is like that of a person who, despite eating, is never satisfied.
Hadith Referenceصحیح ابن حبان / كتاب الزكاة / 3226
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - انظر ما قبله.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط مسلم