Sunan an Nasai
975
Sahih+2

Abdullah bin Abi Qatadah said:"My father told us that the Messenger of Allah (ﷺ) used to recite Umm Al-Quran and two surahs in the first two rak'ahs of Zuhr and 'Asr, and he would make us hear a verse sometimes, and he used to make the first rak'ah lengthy

SahihAbu Ghuddah
SahihAl-Albani