Surah Al-Isra 17:79

وَمِنَ ٱلَّيْلِ فَتَهَجَّدْ بِهِۦ نَافِلَةً لَّكَ عَسَىٰٓ أَن يَبْعَثَكَ رَبُّكَ مَقَامًا مَّحْمُودًا

And from [part of] the night, pray with it [i.e., recitation of the Qur’ān] as additional [worship] for you; it is expected that your Lord will resurrect you to a praised station.

Translation: Saheeh International

Tafsir

And for a part of the night keep vigil perform prayer therewith with the Qur’ān as a supererogatory devotion for you as an extra obligation for you to the exclusion of your community or it means as extra merit for you on top of the other obligatory prayers. …

Excerpt from Tafsir al-Jalalayn, commentary on 17:79, via Quran.com. The reader has the full commentary and 9 more tafsirs.