Surah Az-Zumar (The Successive Groups), Verse 41

اِنَّاۤ اَنْزَلْنَا عَلَیْكَ الْكِتٰبَ لِلنَّاسِ بِالْحَقِّ فَمَنِ اهْتَدٰی فَلِنَفْسِهٖ وَمَنْ ضَلَّ فَاِنَّمَا یَضِلُّ عَلَیْهَا وَمَاۤ اَنْتَ عَلَیْهِمْ بِوَكِیْلٍ 

Innaa anzalnaa 'alaikal Kitaaba linnaasi bilhaqq; famanih tadaa falinafsihee wa man dalla fa innamaa yadillu 'alaihaa wa maaa anta 'alaihim biwakeel

“Verily We have revealed the Book to thee in Truth, for (instructing) mankind. He, then, that receives guidance benefits his own soul: but he that strays injures his own soul. Nor art thou set over them to dispose of their affairs.”

Quran 39:41 (Yusuf Ali Translation)