Surah Sad 38:1

صٓ ۚ وَٱلْقُرْءَانِ ذِى ٱلذِّكْرِ

Ṣād. By the Qur’ān containing reminder...

Translation: Saheeh International

Tafsir

Sād God knows best what He means by this letter. By the Qur’ān bearing the Remembrance that is bearing the Pronouncement; or what is meant is that the Qur’ān is a Book of renown the response to this oath has been omitted in other words ‘It is not as the Meccan disbelievers say that there are many gods’.

Excerpt from Tafsir al-Jalalayn, commentary on 38:1, via Quran.com. The reader has the full commentary and 9 more tafsirs.