Abu Bakr <i>as-Siddiq</i> reported the Prophet (ﷺ) as saying, “One who treats badly those under his authority will not enter paradise.” Tirmidhi and Ibn Majah transmitted it.

وَعَنْ أَبِي بَكْرٍ الصِّدِّيقِ رَضِيَ اللَّهُ عَنْهُ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «لَا يَدْخُلُ الْجَنَّةَ سَيِّئُ الْمَلَكَةِ» . رَوَاهُ التِّرْمِذِيُّ وَابْن مَاجَه