Hadith on Torture: Allah will punish those who torture people

Hisham ibn Hakim reported: He passed by some people in Syria who had been forced to stand in the sun and had oil poured over their heads. Hisham said, “What is this?” It was said, “They are being punished for not paying taxes.” Hisham said, “I heard the Messenger of Allah, peace and blessings be upon him, say: Verily, Allah will torture those who tortured people in this world.”

Source: Ṣaḥīḥ Muslim 2613

Grade: Sahih (authentic) according to Muslim

عَنْ هِشَامِ بْنِ حَكِيمِ بْنِ حِزَامٍ قَالَ مَرَّ بِالشَّامِ عَلَى أُنَاسٍ وَقَدْ أُقِيمُوا فِي الشَّمْسِ وَصُبَّ عَلَى رُءُوسِهِمُ الزَّيْتُ فَقَالَ مَا هَذَا قِيلَ يُعَذَّبُونَ فِي الْخَرَاجِ ‏ فَقَالَ أَمَا إِنِّي سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ إِنَّ اللَّهَ يُعَذِّبُ الَّذِينَ يُعَذِّبُونَ النَّاسَ فِي الدُّنْيَا

2613 صحيح مسلم كتاب البر والصلة والآداب باب الوعيد الشديد لمن عذب الناس بغير حق