Surah Taha 20:37

وَلَقَدْ مَنَنَّا عَلَيْكَ مَرَّةً أُخْرَىٰٓ

And We had already conferred favor upon you another time,

Translation: Saheeh International

Tafsir

And certainly We have done you a favour already another time

Excerpt from Tafsir al-Jalalayn, commentary on 20:37, via Quran.com. The reader has the full commentary and 9 more tafsirs.