It is narrated from Sayyiduna Ibn Amr (may Allah be pleased with him) that once the Noble Prophet (peace and blessings be upon him) said from the pulpit: "Show mercy, you will be shown mercy; forgive, Allah will forgive you. Destruction is for those who only possess the weapon of words. Destruction is for those who knowingly persist and remain steadfast in their sins."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 7041