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."
Umm Habiba reported God's messenger as saying, "Everything a son of Adam says counts against him and not in his favour, except recommending what is good, prohibiting what is objectionable, or making mention of God."
Tirmidhi and Ibn Majah transmitted it, Tirmidhi saying this is a gharib tradition.
Thauban said that when "And those who hoard gold and silver" 1. came down they were with the Prophet on one of his journeys. One of his companions said, "It has come down about gold and silver. Would that we knew what property is best so that we might get it!" He replied, "The best property is a tongue which makes mention of God, a grateful heart, and a believing wife who helps a man with his faith."
1. Qur’an, ix, 34.
He reported God's messenger as saying, "If people sit in an assembly in which they do not remember God or invoke a blessing on their Prophet, vengeance will descend upon them. If God will He will punish them, but if He wills He will forgive them.”