"The Messenger of Allah (ﷺ) used to stand in Zuhr and recite the equivalent of thirty verses in each Rak'ah, then in the first two Rak'ahs of 'Asr he would stand for the equivalent of fifteen verses."
Sunan an-Nasa'i Book 5, Hadith 29
← Previous Hadith "We used to estimate how long the Messenger of Allah (ﷺ) stood when praying in Zuhr and 'Asr. We estimated that he stood in Zuhr for as long as it take to recite thirty verses, as long as Surat As-Sajadah in the fits two Rak'ahs, and half that in the last two. And we estimated that he stood for as long in the fits two Rak'ahs, and half that in the last two. And we estimated that he stood for as long in the first two Rak'ahs of 'Asr as he stood in the last two Rak'ahs of Zuhr, and we estimated that he stood half as long as that in the last two Rak'ahs of 'Asr."

Sunan an-Nasa'i Book 5, Hadith 28 Next Hadith → It was narrated from Anas bin Malik that the Prophet (ﷺ) prayed Zuhr in Al-Madinah, four Rak'ahs, and he prayed 'Asr in Dhul-Hulaifah, two Rak'ahs.

Sunan an-Nasa'i Book 5, Hadith 30