The Messenger of Allah ﷺ said, "There is no prayer for one who does not recite the Opening of the Book."
قال رسول الله ﷺ: لا صلاة لمن لم يقرأ بفاتحة الكتاب.
Bukhari narrated it in the chapter on adhan (756), and Muslim in the chapter on prayer (394), both from the hadith of Sufyan bin Uyayna, from Zuhri, from Mahmud bin Rabi, from Ubada bin Samit, and he related the hadith. Muslim has other routes with the same wording, except for what Abdul-Razzaq narrated from Mamar, from Zuhri, with this same chain, where he added, "or more."Bukhari said in his treatise "The Best Speech on Recitation Behind the Imam" (p. 36) (5), "None of the reliable narrators followed Mamar in his saying 'or more,' despite the fact that he did establish the Fatihah of the Book. And his saying 'or more' is not something known." Then he said, "It is said that Abdul-Rahman bin Ishaq followed Mamar, but Abdul-Rahman sometimes narrated from Zuhri while inserting someone else between himself and Zuhri, and we do not know whether this is part of his sahih hadith or not."He also said, "Ibrahim narrated from Abdul-Rahman bin Ishaq, from Maqburi, from Abu Hurairah, in a way that conflicts with what Araj narrated from Abu Hurairah. This man is not someone whose memory can be relied upon when he contradicts one who is not inferior to him, and Abdul-Rahman was someone whose reports are only tolerated in certain cases. Ismail bin Ibrahim said, 'I asked the people of Madinah about Abdul-Rahman, and he was not praised, moreover no student of his is known in Madinah except Musa Zamii, who narrated several things from him, some of which contain inconsistency.'" End of quote (p. 89, no. 146).I say, however, Abu Dawud (822) narrated this addition, "or more," through the route of Sufyan, from Zuhri. According to the principle of the hadith scholars that an addition from a reliable narrator is accepted, this would make the recitation of an amount beyond the Fatihah obligatory.Hafiz said in Fath al-Bari (2/242), responding to this, "It came to remove the misapprehension that the ruling is confined to the Fatihah alone. Bukhari said in his treatise on recitation, 'This is comparable to his saying, "The hand is cut off for a quarter dinar or more."' That is, the Fatihah is the minimum by which the prayer is valid, just as it is also valid when the recitation exceeds the Fatihah." Meanwhile, there was also disagreement over Sufyan's own narration, for Bukhari, Muslim, and others narrated it through his route without this addition. This shows that some narrators erred by attributing Mamar's hadith to Ibn Uyayna's hadith, and therefore this addition in Ibn Uyayna's hadith is considered shadhdh (anomalous).Ibn Hibban said, "Mamar alone transmitted it from Zuhri, and Bukhari faulted it in his treatise on recitation." Talkhis (1/231).Daraqutni narrated it (1/321) through the route of Ziyad bin Ayub, who said, Sufyan narrated it to us, with this same chain, with the wording, "No prayer is valid in which a man does not recite the Fatihah of the Book." Bayhaqi also narrated it through his route in "Recitation Behind the Imam" (20). Daraqutni said, "Its isnad is sahih."I say, it is as he said, for Ziyad bin Ayub Baghdadi, Abu Hashim, originally from Tus, is "reliable and a hafiz." Imam Ahmad gave him the nickname "the little Shuba," as stated in Taqrib.