Mukhtasar Muslim (Abridged) 334 — Ruling of talking in prayer

Sayyiduna Zaid bin Arqam (may Allah be pleased with him) says: We used to talk during prayer; each person would talk to the one next to him while praying. Until this verse was revealed: "Stand before Allah in silence (with obedience)." From then on, we were commanded to remain silent and speaking was prohibited.