"The Messenger of Allah [SAW] said: 'I do not want to see you after I am gone reverting to disbelievers, striking the necks of one another (killing one another). No man is punished for the crime of his father, or the crime of his brother.'" This is correct.
قَالَ رَسُولُ اللَّهِ ﷺ لاَ أُلْفِيَنَّكُمْ تَرْجِعُونَ بَعْدِي كُفَّارًا يَضْرِبُ بَعْضُكُمْ رِقَابَ بَعْضٍ لاَ يُؤْخَذُ الرَّجُلُ بِجَرِيرَةِ أَبِيهِ وَلاَ بِجَرِيرَةِ أَخِيهِ هَذَا الصَّوَابُ
"The Messenger of Allah [SAW] said: 'Do not revert to disbelievers after I am gone, striking the necks of one another (killing one another). No man is to be punished for the sins of his father, or for the sins of his brother.'"
قَالَ رَسُولُ اللَّهِ ﷺ لاَ تَرْجِعُوا بَعْدِي كُفَّارًا يَضْرِبُ بَعْضُكُمْ رِقَابَ بَعْضٍ لاَ يُؤْخَذُ الرَّجُلُ بِجِنَايَةِ أَبِيهِ وَلاَ جِنَايَةِ أَخِيهِ قَالَ أَبُو عَبْدِ الرَّحْمَنِ هَذَا خَطَأٌ وَالصَّوَابُ مُرْسَلٌ
"The Messenger of Allah [SAW] said: 'Do not revert to disbelievers after I am gone, striking the necks of one another (killing one another). No man is to be punished for the sins of his father, or the sins of his brother.'"
قَالَ رَسُولُ اللَّهِ ﷺ لاَ تَرْجِعُوا بَعْدِي كُفَّارًا يَضْرِبُ بَعْضُكُمْ رِقَابَ بَعْضٍ وَلاَ يُؤْخَذُ الرَّجُلُ بِجَرِيرَةِ أَبِيهِ وَلاَ بِجَرِيرَةِ أَخِيهِ
"The Messenger of Allah [SAW] said: 'Do not revert to disbelievers after I am gone, striking the necks of one another (killing one another). No man is to be punished for the sins of his father, or for the sins of his brother.'" (Using translation from Nasāʾī 4126)
قَالَ رَسُولُ اللهِ ﷺ «لَا تَرْجِعُوا بَعْدِي كُفَّارًا يَضْرِبُ بَعْضُكُمْ رِقَابَ بَعْضٍ وَلَا يُؤْخَذُ الرَّجُلُ بِجِنَايَةِ أَبِيهِ وَلَا بِجِنَايَةِ أَخِيهِ»
"The Messenger of Allah [SAW] said: 'Do not revert to disbelievers after I am gone, striking the necks of one another (killing one another). No man is to be punished for the sins of his father, or the sins of his brother.'" (Using translation from Nasāʾī 4127)
قَالَ رَسُولُ اللهِ ﷺ «لَا تَرْجِعُوا بَعْدِي كُفَّارًا يَضْرِبُ بَعْضُكُمْ رِقَابَ بَعْضٍ وَلَا يُؤْخَذُ الرَّجُلُ بِجَرِيرَةِ أَبِيهِ وَلَا بِجَرِيرَةِ أَخِيهِ»
"The Messenger of Allah [SAW] said: 'Do not revert to disbelievers after I am gone, striking the necks of one another (killing one another). No man is to be punished for the sins of his father, or the sins of his brother.'" (Using translation from Nasāʾī 4127)
قَالَ رَسُولُ اللهِ ﷺ «لَا أُلْفِيَنَّكُمْ تَرْجِعُونَ بَعْدِي كُفَّارًا يَضْرِبُ بَعْضُكُمْ رِقَابَ بَعْضٍ لَا يُؤْخَذُ الرَّجُلُ بِجَرِيرَةِ أَبِيهِ وَلَا بِجَرِيرَةِ أَخِيهِ»
"لا تَرْجِعُوا بَعْدِي كُفَّارًا، يَضْرِبُ بَعْضُكُم رِقَابَ بَعْضٍ، وَلا يُؤْخَذ الرَّجُلُ بِجَرِيرَةِ أَبِيهِ، وَلا بِجَرِيرَةِ أَخِيهِ".