Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates this statement of the Noble Prophet (peace and blessings of Allah be upon him): "A person continues to perform the deeds of the people of Paradise for a long time, but then Allah Almighty ends his life upon the deeds of the people of Hell, and He includes him among the people of Hell. A person continues to perform the deeds of the people of Hell for a long time, then Allah Almighty ends his life upon the deeds of the people of Paradise, and He includes him among the people of Paradise."
Hadith Referenceصحیح ابن حبان / كتاب التاريخ / 6176
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - انظر ما قبله.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط مسلم