Sahih Bukhari: Hadith 761

My father said, "The Prophet (ﷺ) uses to recite Al-Fatiha followed by another Sura in the first two rak`at of the prayer and used to recite only Al-Fatiha in the last two rak`at of the Zuhr prayer. Sometimes a verse or so was audible and he used to prolong the first rak`a more than the second and used to do the same in the `Asr and Fajr prayers."