Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ahmad:20741ʿAffān > ʿAbd al-Wārith > ʿAbdullāh b. Sawādah al-Qushayrī > a man from Ahl al-Bādiyah

[Machine] From his father, and his father was a prisoner in the presence of the Messenger of Allah, ﷺ . He said, "I heard Muhammad, ﷺ , say, 'Prayer is not accepted unless the mother of the Book is recited in it.'"  

أحمد:٢٠٧٤١حَدَّثَنَا عَفَّانُ حَدَّثَنَا عَبْدُ الْوَارِثِ حَدَّثَنِي عَبْدُ اللهِ بْنُ سَوَادَةَ الْقُشَيْرِيُّ قَالَ حَدَّثَنِي رَجُلٌ مِنْ أَهْلِ الْبَادِيَةِ

عَنْ أَبِيهِ وَكَانَ أَبُوهُ أَسِيرًا عِنْدَ رَسُولِ اللهِ ﷺ قَالَ سَمِعْتُ مُحَمَّدًا ﷺ يَقُولُ لَا تُقْبَلُ صَلَاةٌ لَا يُقْرَأُ فِيهَا بِأُمِّ الْكِتَابِ