It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever believes in Allah and the Last Day, and bears witness that I am the Messenger of Allah, let him keep to his home and weep over his sins."
"And whoever believes in Allah and the Last Day, and bears witness that I am the Messenger of Allah, let him speak good so that he may gain, or keep silent from evil so that he may remain safe."
Hadith Referenceالمعجم الكبير للطبراني / باب الصاد / 7675