ʿAli burnt some people and this news reached Ibn ʿAbbas, who said, "Had I been in his place I would not have burnt them, as the Prophet ﷺ said, 'Don't punish (anybody) with Allah's Punishment.' No doubt, I would have killed them, for the Prophet ﷺ said, 'If somebody (a Muslim) discards his religion, kill him.' "
لأَنَّ النَّبِيَّ ﷺ قَالَ لاَ تُعَذِّبُوا بِعَذَابِ اللَّهِ وَلَقَتَلْتُهُمْ كَمَا قَالَ النَّبِيُّ ﷺ مَنْ بَدَّلَ دِينَهُ فَاقْتُلُوهُ
"Some people apostatized after accepting Islam, and 'Ali burned them with fire. Ibn 'Abbas said: 'If it had been me, I would not have burned them; the Messenger of Allah [SAW] said: 'No one should be punished with the punishment of Allah.' If it had been me, I would have killed them; the Messenger of Allah [SAW] said: 'Whoever changes his religion, kill him.'"
قَالَ رَسُولُ اللَّهِ ﷺ لاَ تُعَذِّبُوا بِعَذَابِ اللَّهِ أَحَدًا وَلَوْ كُنْتُ أَنَا لَقَتَلْتُهُمْ قَالَ رَسُولُ اللَّهِ ﷺ مَنْ بَدَّلَ دِينَهُ فَاقْتُلُوهُ
That 'Ali burnt some people who apostasized from Islam. This news reached Ibn 'Abbas, so he said: "If it were me I would have killed them according to the statement of Messenger of Allah ﷺ. The Messenger of Allah ﷺ said: 'Whoever changes his religion then kill him.' And I would not have burned them because the Messenger of Allah ﷺ said: 'Do not punish with the punishment of Allah.' So this reached 'Ali, and he said: "Ibn 'Abbas has told the truth."
لَوْ كُنْتُ أَنَا لَقَتَلْتُهُمْ لِقَوْلِ رَسُولِ اللَّهِ ﷺ مَنْ بَدَّلَ دِينَهُ فَاقْتُلُوهُ وَلَمْ أَكُنْ لأُحَرِّقَهُمْ لِقَوْلِ رَسُولِ اللَّهِ ﷺ لاَ تُعَذِّبُوا بِعَذَابِ اللَّهِ فَبَلَغَ ذَلِكَ عَلِيًّا فَقَالَ صَدَقَ ابْنُ عَبَّاسٍ
"Some people apostatized after accepting Islam, and 'Ali burned them with fire. Ibn 'Abbas said: 'If it had been me, I would not have burned them; the Messenger of Allah [SAW] said: 'No one should be punished with the punishment of Allah.' If it had been me, I would have killed them; the Messenger of Allah [SAW] said: 'Whoever changes his religion, kill him.'" (Using translation from Nasāʾī 4060)
أَمَّا أَنَا لَوْ كُنْتُ لَمْ أُحَرِّقْهُمْ لِنَهْيِ رَسُولِ اللَّهِ ﷺ وَلَقَتَلْتُهُمْ لِقَوْلِ رَسُولِ اللَّهِ ﷺ «لَا تُعَذِّبُوا بِعَذَابِ اللَّهِ» وَقَالَ رَسُولُ اللَّهِ ﷺ «مَنْ بَدَّلَ دِينَهُ فَاقْتُلُوهُ»
[Machine] The Prophet ﷺ said, "Whoever changes his religion or renounces his religion, then kill him." And he said, "Do not punish with the punishment of Allah," meaning the fire.
أَنَّ النَّبِيَّ ﷺ قَالَ مَنْ بَدَّلَ دِينَهُ أَوْ قَالَ رَجَعَ عَنْ دِينِهِ فَاقْتُلُوهُ وَقَالَ «لَا تُعَذِّبُوا بِعَذَابِ اللهِ» يَعْنِي النَّارَ
"Some people apostatized after accepting Islam, and 'Ali burned them with fire. Ibn 'Abbas said: 'If it had been me, I would not have burned them; the Messenger of Allah [SAW] said: 'No one should be punished with the punishment of Allah.' If it had been me, I would have killed them; the Messenger of Allah [SAW] said: 'Whoever changes his religion, kill him.'" (Using translation from Nasāʾī 4060)
قَالَ رَسُولُ اللهِ ﷺ «لَا تُعَذِّبُوا بِعَذَابِ اللهِ أَحَدًا» وَلَوْ كُنْتُ أَنَا لَقَتَلْتُهُمْ قَالَ رَسُولُ اللهِ ﷺ «مَنْ بَدَّلَ دِينَهُ فَاقْتُلُوهُ»
"مَنْ بَدَّلَ دِينَهُ، أَوْ رَجَعَ عَنْ دِينِه فَاقْتُلُوهُ، وَلا تُعَذِّبوا بِعَذَابِ [الله -يعني -] النَّار".