Marwan bin Hakam once passed by Hazrat Usama (may Allah be pleased with him) while he was praying. Marwan began telling stories. On one occasion when the two met, Hazrat Usama (may Allah be pleased with him) said, "Marwan! I heard the Prophet Muhammad (peace and blessings be upon him) say: Allah Almighty does not like anyone who is shameless and foul-mouthed."
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 21764
Hadith Gradingحکم دارالسلام:حديث حسن، وهذا إسناد ضعيف الضعف أبى المعشر. سليم مجهول