It is narrated from Sayyiduna Imam Hussain (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "It is from the excellence of a person's Islam that he minimizes his speech in idle matters and abandons them."
Hadith Referenceمسند احمد / مسند اهل البيت رضوان الله عليهم اجمعين / 1732
Hadith Gradingحکم دارالسلام:حديث حسن لشواهده، وهذا إسناد ضعيف لانقطاعه، شعيب بن خالد لم يدرك الحسين بن علي.