It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that Sayyiduna Muawiyah (may Allah be pleased with him) led a loud (jahri) prayer in Madinah. Before Surah Al-Fatihah, he recited «بِسْمِاللَّهِالرَّحْمَنِالرَّحِيمِ», but after Al-Fatihah, when he recited another Surah, he did not recite Bismillah aloud with it, until he completed the prayer. And when he went into prostration, he did not say Allahu Akbar aloud until he finished the prayer. From all sides, the Muhajirun and Ansar raised their voices, saying, "O Muawiyah! Have you stolen from the prayer or have you forgotten?" Sayyiduna Anas (may Allah be pleased with him) says that after that, whenever Sayyiduna Muawiyah (may Allah be pleased with him) led the prayer, he recited Bismillah aloud with every Surah and also said Takbir aloud when going into prostration.
Hadith Referenceالسنن المأثورة / باب ما جاء في النداء في السفر / 44
Hadith Takhrijالسنن الكبرى للبيهقي: 49/2 ، والحاكم في المستدرك وقال صحيح على شرط مسلم۔