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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:75:1 – In 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:٧٥:١ – بِسْمِ 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.