Surah As-Saffah (Those Angels Lines up in Ranks), Verse 117

وَاٰتَیْنٰهُمَا الْكِتٰبَ الْمُسْتَبِیْنَ ۟

Wa aatainaahumal Kitaabal mustabeen

“And We gave them the Book which helps to make things clear;”

Quran 37:117 (Yusuf Ali Translation)