[Machine] The Prophet Muhammad ﷺ delivered a powerful sermon after the morning prayer, causing tears to flow from the eyes and fear to fill the hearts. One of his companions said, "O Messenger of Allah, this is a farewell sermon." He then said, "I advise you to have taqwa (consciousness) of Allah, and to listen and obey, even if your leader is an Abyssinian slave. Indeed, whoever lives among you will see much difference, so beware of newly-invented matters, for every innovation is a misguidance. Whoever among you lives to see that, then it is upon him to adhere to my Sunnah and the Sunnah of the rightly-guided caliphs. Bite onto it with your molar teeth."
وَعَظَنَا رَسُولُ اللهِ ﷺ بَعْدَ صَلَاةِ الْغَدَاةِ مَوْعِظَةً بَلِيغَةً ذَرَفَتْ مِنْهَا الْعُيُونُ وَوَجِلَتْ مِنْهَا الْقُلُوبُ فَقَالَ رَجُلٌ مِنْ أَصْحَابِهِ يَا رَسُولَ اللهِ إِنَّ هَذِهِ مَوْعِظَةَ مُوَدِّعٍ فَقَالَ «أُوصِيكُمْ بِتَقْوَى اللهِ وَالسَّمْعِ وَالطَّاعَةِ وَإِنْ كَانَ عَبْدًا حَبَشِيًّا فَإِنَّهُ مَنْ يَعِشْ مِنْكُمْ فَسَيَرَى اخْتِلَافًا كَثِيرًا فَإِيَّاكُمْ وَمُحْدَثَاتِ الْأُمُورِ فَإِنَّهَا بِدْعَةٌ فَمَنْ أَدْرَكَ ذَلِكَ مِنْكُمْ فَعَلَيْهِ بِسُنَّتِي وَسُنَّةِ الْخُلَفَاءِ الرَّاشِدِينَ الْمَهْدِيِّينَ عَضُّوا عَلَيْهَا بِالنَّوَاجِذِ»