Ibn ‘Umar reported God’s messenger as saying, "Do not speak much without mentioning God, for much talk without mention of God produces hardness of heart, and the one who is farthest from God is he who has a hard heart." Tirmidhi transmitted it.
Hadith Referenceمشكوة المصابيح / كتاب الدعوات / 2276
Hadith Gradingالألبانی:لم تتمّ دراسته | زبیر علی زئی:إسناده حسن
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «إسناده حسن، رواه الترمذي (2411 وقال: غريب)»