‘Amr ibn ‘Awf reported: The Messenger of Allah ﷺ, said, “Know that whoever revives a tradition from my Sunnah if it has died out after me, he will have a reward like those who act upon it without diminishing any of their rewards. Whoever innovates a misguided heresy not pleasing to Allah and His messenger, he will have a sin like those who act upon it without diminishing any of the people’s burdens.”
Sunan al-Tirmidhī 2677 Chapter what came in regards to taking from the Sunnah and staying away from Innovation – Grade: Hasan (fair) according to Al-Tirmidhi
عن عمرو بن عوف قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ اعْلَمْ إِنَّهُ مَنْ أَحْيَا سُنَّةً مِنْ سُنَّتِي قَدْ أُمِيتَتْ بَعْدِي فَإِنَّ لَهُ مِنْ الْأَجْرِ مِثْلَ مَنْ عَمِلَ بِهَا مِنْ غَيْرِ أَنْ يَنْقُصَ مِنْ أُجُورِهِمْ شَيْئًا وَمَنْ ابْتَدَعَ بِدْعَةَ ضَلَالَةٍ لَا تُرْضِي اللَّهَ وَرَسُولَهُ كَانَ عَلَيْهِ مِثْلُ آثَامِ مَنْ عَمِلَ بِهَا لَا يَنْقُصُ ذَلِكَ مِنْ أَوْزَارِ النَّاسِ شَيْئً
2677 سنن الترمذي كتاب العلم باب ما جاء في الأخذ بالسنة واجتناب البدع
2677 المحدث الترمذي خلاصة حكم المحدث حسن في سنن الترمذي
Ahlul-Hadith 