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:37:20 –

They will say, "O woe to us! This is the Day of Recompense."  

And they, the disbelievers, will say, ‘O (yā is for calling attention) woe to us!’, ˹O˺ our destruction ˹is here˺ (waylanā is a verbal noun without any ˹regular˺ verbal conjugation). And the angels will say to them: ‘This is the Day of Retribution’, the Day of Reckoning and Requital.
القرآن:٣٧:٢٠ –

وَقَالُوا يَا وَيْلَنَا هَٰذَا يَوْمُ الدِّينِ  

{وقالوا} أي الكفار {يا} للتنبيه {ويْلنا} هلاكنا، وهو مصدر لا فعل له من لفظه وتقول لهم الملائكة: {هذا يوم الدين} يوم الحساب والجزاء.