Surah Al-A'la 87:9

فَذَكِّرْ إِن نَّفَعَتِ ٱلذِّكْرَىٰ

So remind, if the reminder should benefit;

Translation: Saheeh International

Tafsir

So remind admonish by the Qur’ān in case the reminder should be of benefit to the one whom you might remind the one mentioned in the following verse ‘he who fears will be reminded’ in other words even if it might not be of benefit for it is of benefit to some but of no benefit to others.

Excerpt from Tafsir al-Jalalayn, commentary on 87:9, via Quran.com. The reader has the full commentary and 9 more tafsirs.