Hadith on Sunnah: Follow the Sunnah, beware of innovation

Al-‘Irbad ibn Sariyah reported: One day the Messenger of Allah, peace and blessings be upon him, stood up among us and he admonished us so eloquently that it moved our hearts and made tears come to our eyes. It was said, “O Messenger of Allah, you have given us a farewell sermon, so what do you commit us to?” The Prophet said, “You must fear Allah, listen to and obey your leaders, even if an Abyssinian slave is put in charge over you. Whoever lives among you will see many disputes. Beware of newly invented matters, for they are misguidance. Whoever sees them must adhere to my Sunnah and the Sunnah of the upright, guided Caliphs. Bite onto it with your back teeth.”

Source: Sunan al-Tirmidhī 2676

Grade: Sahih (authentic) according to Al-Tirmidhi

عَنْ الْعِرْبَاضِ بْنِ سَارِيَةَ قَالَ وَعَظَنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَوْمًا بَعْدَ صَلَاةِ الْغَدَاةِ مَوْعِظَةً بَلِيغَةً ذَرَفَتْ مِنْهَا الْعُيُونُ وَوَجِلَتْ مِنْهَا الْقُلُوبُ فَقَالَ رَجُلٌ إِنَّ هَذِهِ مَوْعِظَةُ مُوَدِّعٍ فَمَاذَا تَعْهَدُ إِلَيْنَا يَا رَسُولَ اللَّهِ قَالَ أُوصِيكُمْ بِتَقْوَى اللَّهِ وَالسَّمْعِ وَالطَّاعَةِ وَإِنْ عَبْدٌ حَبَشِيٌّ فَإِنَّهُ مَنْ يَعِشْ مِنْكُمْ يَرَى اخْتِلَافًا كَثِيرًا وَإِيَّاكُمْ وَمُحْدَثَاتِ الْأُمُورِ فَإِنَّهَا ضَلَالَةٌ فَمَنْ أَدْرَكَ ذَلِكَ مِنْكُمْ فَعَلَيْهِ بِسُنَّتِي وَسُنَّةِ الْخُلَفَاءِ الرَّاشِدِينَ الْمَهْدِيِّينَ عَضُّوا عَلَيْهَا بِالنَّوَاجِذِ

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