(11) باب وُجُوبِ قِرَاءَةِ الْفَاتِحَةِ فِي كُلِّ رَكْعَةٍ وَإِنَّهُ إِذَا لَمْ يُحْسِنِ الْفَاتِحَةَ وَلاَ أَمْكَنَهُ تَعَلُّمُهَا قَرَأَ مَا تَيَسَّرَ لَهُ مِنْ غَيْرِهَا
This hadith has also been transmitted by Ma'mar from al-Zuhri with the same chain of transmitters with the addition of these words:
" and something more".
Reference: Sahih Muslim 394 d
In-book reference: Book 4, Hadith 40
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 774