Muwatta Malik 186

Arabic

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ أَبِي نُعَيْمٍ، وَهْبِ بْنِ كَيْسَانَ أَنَّهُ سَمِعَ جَابِرَ بْنَ عَبْدِ اللَّهِ، يَقُولُ مَنْ صَلَّى رَكْعَةً لَمْ يَقْرَأْ فِيهَا بِأُمِّ الْقُرْآنِ فَلَمْ يُصَلِّ إِلاَّ وَرَاءَ الإِمَامِ ‏.‏

Translation

Yahya related to me from Malik from Abu Nuaym Wahb ibn Kaysan that he heard Jabir ibn Abdullah say, "Someone who prays a raka without reciting the umm al-Qur'an in it has not done the prayer except behind an imam

Authenticity

Sahih · Salim al-Hilali

Reference