رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 48
The Book of Miscellany
Patience and Perseverance
وَعَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ ، أَنَّ رَجُلاً قَالَ لِلنَّبِيِّ صَلَّى اللَّه عَلَيْهِ وَسَلَّمَ: أَوْصِنِي، قَالَ: "لاَ تَغْضَبْ" فَرَدَّدَ مِرَارًا، قَالَ: " لاتغضب" رَوَاهُ الْبُخَارِيّ.
Abu Hurairah (May Allah be pleased with him) reported: A man asked the Prophet (ﷺ) for an advice and he (ﷺ) said, "Do not get angry". The man repeated that several times and he replied, "Do not get angry". [Al-Bukhari].
Riyad as-Salihin, 48