Riyad as-Salihin, Book 1, Hadith 639 (In-Book) ⓘ
Abu Hurairah (May Allah be pleased with him) reported: A man asked the Prophet to give him advice, and he said, "Do not get angry." The man repeated that several times and he replied (every time), "Do not get angry."[Al- Bukhari].
وعن أبى هريرة رضي الله عنه أن رجلاً قال للنبى صلى الله عليه وسلم: أوصنى قال: “لا تغضب” فردد مراراً، قال: “لا تغضب”. ((رواه البخارى)).