The Prophet (may Allah's peace and blessings be upon him) as well as Abu Bakr and ‘Umar, used to begin the prayer with {All praise is due to Allah, Lord of the worlds}

The noble Hadīth indicates that the Prophet (may Allah's peace and blessings be upon him) and his two Companions (may Allah be pleased with both them) did not use to recite "In the name of Allah, the Most Beneficent, the Most Merciful" loudly at the beginning of Sūrat al-Fātihah during the prayer. This confirms that Basmalah is not part of Sūrat al-Fātihah. The Permanent Committee for Issuing Fatwas stated: "The sound opinion is that the Basmalah is not part of Sūrat al-Fātihah nor any other Sūrah. Rather, it is an independent verse in the Qur'an, and part of a verse in Sūrat An-Naml, which reads: {Indeed, it is from Sulaymān, and it reads: {In the name of Allah, the Most Beneficent, the Most Merciful} [Sūrat An-Naml: 30]. It is recommended to recite it at the beginning of every Sūrah, except Sūrat At-Tawbah. It is an act of Sunnah to recite it silently during the prayer before Sūrat al-Fātihah."