Layla, the wife of Bashir (may Allah be pleased with him), relates that Bashir (may Allah be pleased with him) told her that he asked the Messenger of Allah (peace and blessings be upon him): I fast on Friday and do not speak to anyone on that day. He (peace and blessings be upon him) said: "Do not fast on Friday by itself, except among days of which it is the last. As for not speaking to anyone, then by my life, if you speak and enjoin what is right and forbid what is wrong, that is better than keeping silent."
Hadith Referenceالمعجم الكبير للطبراني / باب الباء / 1221