Aisha reported: The Messenger of Allah, peace and blessings be upon him, said, “Verily, the most hated man to Allah is the one who is harsh in argument.”

Source: Sahih Muslim 2668

Grade: Sahih (authentic) according to Muslim

عَنْ عَائِشَةَ قَالَتْ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏‏إِنَّ أَبْغَضَ الرِّجَالِ إِلَى اللَّهِ الأَلَدُّ الْخَصِمُ

2668 صحيح مسلم كِتَاب الْعِلْمِ بَاب فِي الْأَلَدِّ الْخَصِمِ