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:25:27 –

And the Day the wrongdoer will bite on his hands ˹in regret˺ he will say, "Oh, I wish I had taken with the Messenger a way.  

And ˹it will be˺ a day when the wrongdoer, the idolater, ‘Uqba b. Abī Mu‘ayt — who had uttered the two-part profession ˹‘there is no god but God, Muhammad (s) is His Messenger’˺ but retracted it in order to please Ubayy b. Khalaf — will bite his hands, in regret and anguish on the Day of Resurrection, saying, ‘O (yā is for drawing attention) would that I had followed a way with the Messenger!, Muhammad (s), a route to guidance.
القرآن:٢٥:٢٧ –

وَيَوْمَ يَعَضُّ الظَّالِمُ عَلَىٰ يَدَيْهِ يَقُولُ يَا لَيْتَنِي اتَّخَذْتُ مَعَ الرَّسُولِ سَبِيلًا  

{ويوم يعضُّ الظالم} المشرك: عقبة بن أبي معيط كان نطق بالشهادتين ثم رجع إرضاءً لأبيّ بن خلف {على يديه} ندما وتحسرا في يوم القيامة {يقول يا} للتنبيه {ليتني اتخذت مع الرسول} محمد {سبيلا} طريقا إلى الهدى.