Amr bin Shu'aib, on the authority of his father, narrates from his grandfather: The Prophet Muhammad (peace be upon him) said: "Whoever is performing an obligatory or voluntary prayer should recite Surah Al-Fatihah in it and along with it recite another Surah; if he only recites Surah Al-Fatihah, that will also suffice for him. And whoever is praying behind an Imam in a prayer in which the Imam recites aloud, he should recite Surah Al-Fatihah during the Imam's silence; if he does not do so, his prayer will be incomplete and not fulfilled." The narrator named Muhammad bin Abdullah bin Ubaid bin Umair is weak.
Hadith Referenceسنن الدارقطني / كتاب الصلاة / 1223
Hadith Gradingمحدثین:إسناده ضعيف
Hadith Takhrij«إسناده ضعيف ، وأخرجه الدارقطني فى ((سننه)) برقم: 1223 ، وقال الدارقطني: فيه محمد بن عبد الله بن عبيد بن عمير وهو ضعيف ، الإعلام بسنته عليه الصلاة والسلام بشرح سنن ابن ماجه الإمام: 244/5»