"The Messenger of Allah said: 'Whoever introduces a good practice that is followed, he will receive its reward and a reward equivalent to that of those who follow it, without that detracting from their reward in their slightest. And whoever introduces a bad practice that is followed, he will receive its sin and a burden of sin equivalent to that of those who follow it, without that detracting from their burden in the slightest.'"  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ سَنَّ سُنَّةً حَسَنَةً فَعُمِلَ بِهَا كَانَ لَهُ أَجْرُهَا وَمِثْلُ أَجْرِ مَنْ عَمِلَ بِهَا لاَ يَنْقُصُ مِنْ أُجُورِهِمْ شَيْئًا وَمَنْ سَنَّ سُنَّةً سَيِّئَةً فَعُمِلَ بِهَا كَانَ عَلَيْهِ وِزْرُهَا وَوِزْرُ مَنْ عَمِلَ بِهَا مِنْ بَعْدِهِ لاَ يَنْقُصُ مِنْ أَوْزَارِهِمْ شَيْئًا  

"A man came to the Prophet, who encouraged the people to give charity to him. A man said: 'I have such and such,' and there was no one left in that gathering who did not give him something in charity, to a greater or lesser extent. The Messenger of Allah said: 'Whoever initiates a good practice that is followed, he will receive a perfect reward for that, and a reward equivalent to that of those who follow it, without that detracting from their reward in the slightest. And whoever introduces a bad practice that is followed, he will receive the complete burden of sin for that, and a burden of sin equivalent to that of those who follow it without that detracting from their burden in the slightest.'"  

جَاءَ رَجُلٌ إِلَى النَّبِيِّ ﷺ فَحَثَّ عَلَيْهِ فَقَالَ رَجُلٌ عِنْدِي كَذَا وَكَذَا قَالَ فَمَا بَقِيَ فِي الْمَجْلِسِ رَجُلٌ إِلاَّ تَصَدَّقَ عَلَيْهِ بِمَا قَلَّ أَوْ كَثُرَ فَقَالَ رَسُولُ اللَّهِ ﷺ مَنِ اسْتَنَّ خَيْرًا فَاسْتُنَّ بِهِ كَانَ لَهُ أَجْرُهُ كَامِلاً وَمِنْ أُجُورِ مَنِ اسْتَنَّ بِهِ وَلاَ يَنْقُصُ مِنْ أُجُورِهِمْ شَيْئًا وَمَنِ اسْتَنَّ سُنَّةً سَيِّئَةً فَاسْتُنَّ بِهِ فَعَلَيْهِ وِزْرُهُ كَامِلاً وَمِنْ أَوْزَارِ الَّذِينَ اسْتَنَّ بِهِ وَلاَ يَنْقُصُ مِنْ أَوْزَارِهِمْ شَيْئًا  

"A man came to the Prophet, who encouraged the people to give charity to him. A man said: 'I have such and such,' and there was no one left in that gathering who did not give him something in charity, to a greater or lesser extent. The Messenger of Allah said: 'Whoever initiates a good practice that is followed, he will receive a perfect reward for that, and a reward equivalent to that of those who follow it, without that detracting from their reward in the slightest. And whoever introduces a bad practice that is followed, he will receive the complete burden of sin for that, and a burden of sin equivalent to that of those who follow it without that detracting from their burden in the slightest.'" (Using translation from Ibn Mājah 204)  

جَاءَ رَجُلٌ إِلَى رَسُولِ اللهِ ﷺ فَحَثَّ عَلَيْهِ فَقَالَ رَجُلٌ عِنْدِي كَذَا وَكَذَا قَالَ فَمَا بَقِيَ فِي الْمَجْلِسِرَجُلٌ إِلَّا قَدْ تَصَدَّقَ بِمَا قَلَّ أَوْ كَثُرَ فَقَالَ رَسُولُ اللهِ ﷺ مَنْ سَنَّ خَيْرًا فَاسْتُنَّ بِهِ كَانَ لَهُ أَجْرُهُ كَامِلًا وَمِنْ أُجُورِ مَنْ اسْتَنَّ بِهِ لَا يَنْقُصُ مِنْ أُجُورِهِمْ شَيْئًا وَمَنْ اسْتَنَّ شَرًّا فَاسْتُنَّ بِهِ فَعَلَيْهِ وِزْرُهُ كَامِلًا وَمِنْ أَوْزَارِ الَّذِي اسْتَنَّ بِهِ لَا يَنْقُصُ مِنْ أَوْزَارِهِمْ شَيْئًا  

[Machine] A man asked during the time of the Prophet ﷺ, so the people held back. Then, a man gave him something, so he gave it to the people. The Prophet ﷺ said, "Whoever starts a good practice, he will have its reward and the reward of those who follow him, without their rewards being decreased in any way. And whoever starts an evil practice, he will bear its burden and the burden of those who follow him, without their burdens being decreased in any way."  

سَأَلَ رَجُلٌ عَلَى عَهْدِ النَّبِيِّ ﷺ فَأَمْسَكَ الْقَوْمُ ثُمَّ إِنَّ رَجُلًا أَعْطَاهُ فَأَعْطَى الْقَوْمُ فَقَالَ النَّبِيُّ ﷺ مَنْ سَنَّ خَيْرًا فَاسْتُنَّ بِهِ كَانَ لَهُ أَجْرُهُ وَمِنْ أُجُورِ مَنْ يَتَّبِعُهُ غَيْرَ مُنْتَقِصٍ مِنْ أُجُورِهِمْ شَيْئًا وَمَنْ سَنَّ شَرًّا فَاسْتُنَّ بِهِ كَانَ عَلَيْهِ وِزْرُهُ وَمِنْ أَوْزَارِ مَنْ يَتَّبِعُهُ غَيْرَ مُنْتَقِصٍ مِنْ أَوْزَارِهِمْ شَيْئًا  

"مَنْ سَنَّ في الإِسْلامِ خَيرًا فَاسْتُنَّ بهِ كَانَ لَهُ أَجْرُهُ وَمِثْلُ أُجُورِ مَنْ تَبعَه من غير أَنْ يَنْقُصَ مِن أُجُورهم شَيئًا، ومَن سَنَّ شَرّا (*) فَاسْتُنَّ بِهِ كَانَ عَلَيهِ وزْرُه وَمِثْلُ أَوْزَار مَن تَبعَه مِن غَير أَنْ يَنْقُصَ مِن أَوْزَارهم شَيئًا".  

"مَنْ أَحْيَا سُنَّةً مِنْ سُنَّتِى فَعَمِل بِهَا النَّاسُ، فإن لَهُ أَجْرُ مِثْل مَنْ عَمِلَ بِهَا لَا يَنْقُصُ مِنْ أُجُورِهِمْ شَيئًا، وَمَنْ ابْتَدعً بِدْعَةً فَعَمِلَ بِهَا كَانَ عَلَيهِ أَوْزَارُ مَنْ عَمِلَ بِهَا، لَا يَنْقُصُ مِنْ أَوْزَارِهِمْ شَيئًا".  

"مَن اسْتَسنَّ خَيرًا فَاسْتُنَّ به كَانَ لَه أَجرُه كَامِلًا ومِن أُجُور منْ اسْتَنَّ به ولا يَنْتَقِصُ من أُجُورِهم شَيئًا، ومن اسْتَسنَّ سُنَّةً سيِّئَةً فَاسْتُنَّ بِه فَعلَيهِ وزره كَامِلًا ومِن أَوزَارِ الَّذِين اسْتَنُّوا به ولا ينْتَقِصُ من أَوْزَارهم شَيئًا".