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:31:22 –

And whoever submits his face to Allah while he is a doer of good - then he has grasped the most trustworthy handhold. And to Allah will be the outcome of ˹all˺ matters.  

And whoever surrenders his purpose to God, that is, ˹whoever˺ takes to obeying Him, and is virtuous, a believer in ˹His˺ Oneness, has certainly grasped the firmest handle, the stronger end, which is not in danger of being severed, and to God belongs the sequel of all matters, their ˹ultimate˺ return.
القرآن:٣١:٢٢ –

وَمَنْ يُسْلِمْ وَجْهَهُ إِلَى اللَّهِ وَهُوَ مُحْسِنٌ فَقَدِ اسْتَمْسَكَ بِالْعُرْوَةِ الْوُثْقَىٰ ۗ وَإِلَى اللَّهِ عَاقِبَةُ الْأُمُورِ  

{ومن يُسلم وجهه إلى الله} أي يقبل على طاعته {وهو محسن} موحد {فقد استمسك بالعروة الوثقى} بالطرف الأوثق الذي لا يخاف انقطاعه {وإلى الله عاقبة الأمور} مرجعها.