Surah Yusuf — Ayah 103 (12:103)
وَمَآ أَكۡثَرُ ٱلنَّاسِ وَلَوۡ حَرَصۡتَ بِمُؤۡمِنِينَ ١٠٣
English translation (Saheeh International)
And most of the people, although you strive [for it], are not believers.
Brief commentary
Most people will not have faith, even if the Messenger should make every effort for them to believe; so he should not lose himself in grief over them.