Al-Hijr - 15:1

بِسْمِ اللهِ الرَّحْمنِ الرَّحِيمِ الَرَ تِلْكَ آيَاتُ الْكِتَابِ وَقُرْآنٍ مُّبِينٍ
[15:1]
Alif Lam Ra. These are the verses of the Book and (of) a Quran that makes (things) clear.
A. L. R. These are the Ayats of Revelation,- of a Qur'an that makes things clear.
Alif. Lam. Ra. These are verses of the Scripture and a plain Reading.