Surah Al-Baqara(2), Verse 163:
وَإِلَٰهُكُمْ إِلَٰهٌ وَاحِدٌ لَّا إِلَٰهَ إِلَّا هُوَ الرَّحْمَٰنُ الرَّحِيمُ
And your Allah is One Allah: There is no god but He, Most Gracious, Most Merciful.
(English – Yusuf Ali)
Here are some hadith which indicates the time period prophet used to take by reciting surahs
He used to recite :
(a)Jabir b. Samura reported:The Apostle of Allah (ﷺ) used to RECITE IN THE NOON PRAYER:” BY THE NIGHT WHEN IT ENVELOPES” (92),and in the afternoon like this, but he prolonged the morning prayer as compared to that (noon and afternoon prayers).
We used to estimate how long the Messenger of Allah (ﷺ) stood in the noon and the afternoon prayer, and we estimated that he stood in the first two rak’ahs of the noon prayer as long as it takes to recite thirty verses (of the Qur’an), such as A-L-M Tanzil al-Sajdah. And we estimated that he stood in the last two rak’ahs half the time he stood in the first two rak’ahs. We estimated that he stood in the first two rak’ahs of the afternoon prayer as long as he did in the last two at noon; and we estimated that he stood in the last two rak’ahs of the afternoon prayer half the time he did in first two.
Sunan Abi Dawud 804
(d) Narrated Jabir ibn Samurah:
The Messenger of Allah (ﷺ) used to recite in the noon and afternoon prayer: “By the Heaven and the Morning Star” (Surah 86) and “By the Heaven , holding mansions of the stars” (Surah 85) and similar surahs of equal length.
Hasan Sahih (Al-Albani)
Sunan Abi Dawud 805