Sayyiduna Ubadah bin Samit (may Allah be pleased with him) said: "The prayer of that person is not valid who does not recite Surah Al-Fatihah and (in addition) another Surah." (Imam Ibn Hibban, may Allah have mercy on him, says:) In the narration transmitted from Mak'hool, the statement of the Prophet (peace and blessings of Allah be upon him), "Do not do so, (however, the command regarding Surah Al-Fatihah is different)," these words are of prohibition, but the intent is to give a new command from the beginning. In narrating the word "fa-sa'idan" from Zuhri, only Mu'ammar is unique; other students of Zuhri have not transmitted this word.
Hadith Referenceصحیح ابن حبان / كتاب الصلاة / 1786
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح: م - انظر (1779). تنبيه!! رقم (1779) = (1782) من «طبعة المؤسسة». - مدخل بيانات الشاملة -.فضيلة الشيخ العلّامة شُعيب الأرناؤوطحديث صحيح، ابن أبي السري: تقدم غير مرة أنه يهم كثيرا، لكنه متابع عليه، وباقي رجاله رجال الشيخين.