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:10:57 –

O mankind, there has to come to you instruction from your Lord and healing for what is in the breasts and guidance and mercy for the believers.  

O people, that is, inhabitants of Mecca, there has come to you an admonition from your Lord, a Book which contains ˹mention˺ of that which is ˹permissible˺ for you and that which is enjoined on you, and this ˹Book˺ is the Qur’ān; and a healing, a cure, for what is in the breasts, of corrupt beliefs and uncertainties, and a guidance, from error, and a mercy for those who believe, in it.
القرآن:١٠:٥٧ –

يَا أَيُّهَا النَّاسُ قَدْ جَاءَتْكُمْ مَوْعِظَةٌ مِنْ رَبِّكُمْ وَشِفَاءٌ لِمَا فِي الصُّدُورِ وَهُدًى وَرَحْمَةٌ لِلْمُؤْمِنِينَ  

{يا أيها الناس} أي أهل مكة {قد جاءتكم موعظة من ربكم} كتاب فيه ما لكم وما عليكم وهو القرآن {وشفاء} دواء {لما في الصدور} من العقائد الفاسدة والشكوك {وهدى} من الضلال {ورحمة للمؤمنين} به.