Wikipedia
Al-Hijr (surah)
Sūrat al-Ḥijr (, "The Stoneland") is the 15th surah of the Qur'an. It has 99 ayat. It is a Makkan surah believed to have been received by Muhammad shortly after the 12th surah ( Yusuf), Muhammad's last year in Mecca. It is an early Makki surah, which means that its revelation to Muhammad occurred within the confines of the city of Makkah. Like the other surah of this period, it praises God.
A quality of Makkan-Quran is that the ayat – or the verses – are shorter and the rhyme and writing of the surah is more efficient and quicker.