Ibrahim al-Nakha'i, may Allah have mercy on him, said: A man says a word in a gathering by which Allah becomes pleased, so Allah's mercy descends upon him and surrounds those around him as well. And sometimes a man says a word in a gathering by which Allah becomes angry, so Allah's wrath descends upon him and that wrath also surrounds those around him.
Hadith Referenceسنن سعید بن منصور / كتاب التفسير / 704