Surah Al-Qasas (The Stories), Verse 56

اِنَّكَ لَا تَهْدِیْ مَنْ اَحْبَبْتَ وَلٰكِنَّ اللّٰهَ یَهْدِیْ مَنْ یَّشَآءُ وَهُوَ اَعْلَمُ بِالْمُهْتَدِیْنَ ۟

Innaka laa tahdee man ahbabta wa laakinn Allaha yahdee mai yashaaa'; wa huwa a'lamu bil muhtadeen

“It is true thou wilt not be able to guide every one, whom thou lovest; but Allah guides those whom He will and He knows best those who receive guidance.”

Quran 28:56 (Yusuf Ali Translation)