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:5:77 –

Say, "O People of the Scripture, do not exceed limits in your religion beyond the truth and do not follow the inclinations of a people who had gone astray before and misled many and have strayed from the soundness of the way."  

Say: ‘O People of the Scripture, Jews and Christians, do not go to extremes, do ˹not˺ overstep the bounds, in your religion, other than those, extremes, of truth, neither lowering nor elevating Jesus above his proper place, and do not follow the whims of a people who went astray formerly, on account of their extremism — these were their forefathers — and have led many, ˹other˺ people, astray, and strayed from the even way’, from the path of truth (al-sawā’ originally means ‘middle’).
القرآن:٥:٧٧ –

قُلْ يَا أَهْلَ الْكِتَابِ لَا تَغْلُوا فِي دِينِكُمْ غَيْرَ الْحَقِّ وَلَا تَتَّبِعُوا أَهْوَاءَ قَوْمٍ قَدْ ضَلُّوا مِنْ قَبْلُ وَأَضَلُّوا كَثِيرًا وَضَلُّوا عَنْ سَوَاءِ السَّبِيلِ  

{قل يا أهل الكتاب} اليهود والنصارى {لا تغلوا} لا تجاوزوا الحد {في دينكم} غلوّا {غير الحق} بأن تضعوا عيسى أو ترفعوه فوق حقه {ولا تتبعوا أهواء قوم قد ضلوا من قبل} بغلوهم وهم أسلافُهم {وأضلوا كثيرا} من الناس {وضلُّوا عن سواء السبيل} عن طريق الحق والسواء في الأصل الوسط.