Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
quran:75:1In the name of Allah, the Entirely Merciful, the Especially Merciful.

I swear by the Day of Resurrection  

Nay! (the lā is extra in both instances) I swear by the Day of Resurrection.
القرآن:٧٥:١بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ

لَا أُقْسِمُ بِيَوْمِ الْقِيَامَةِ  

{لا} زائدة في الموضعين {أقسم بيوم القيامة}.

See similar narrations below:

Collected by Qurʾān
quran:56:75

Then I swear by the setting of the stars,  

Nay, I swear (fa-lā uqsimu: lā is extra) by the setting-places of the stars!
القرآن:٥٦:٧٥

فَلَا أُقْسِمُ بِمَوَاقِعِ النُّجُومِ  

{فلا أقسم} لا زائدة {بمواقع النجوم} بمساقطها لغروبها.