Bulugh al-Maram 16 The Comprehensive Book كتاب الجامع 56

وَعَنْهُ أَنَّ رَجُلاً قَالَ: { يَا رَسُولَ اَللَّهِ! أَوْصِنِي. فَقَالَ: لَا تَغْضَبْ, فَرَدَّدَ مِرَارًا. قَالَ: لَا تَغْضَبْ } أَخْرَجَهُ اَلْبُخَارِيُّ. 1 . 1 – صحيح. رواه البخاري (6116).

Abu Hurairah (RAA) narrated, ‘A man said, “O Messenger of Allah, advise me.” The Messenger of Allah (صلى الله عليه وسلم) said: “Do not get angry.” The man repeated that several times and he replied, “Do not get angry.” Related by Al-Bukhari.