7/638 – Jarīr ibn ʿAbd Allāh (may Allah be pleased with him) reported: I heard the Messenger of Allah ﷺ say, “Whoever is deprived of gentleness is deprived of all goodness.” Narrated by Muslim.

8/639 – Abū Hurayrah (may Allah be pleased with him) reported that a man said to the Prophet ﷺ, “Give me advice.” He replied, “Do not become angry.” The man repeated his request several times, and each time the Prophet said, “Do not become angry.” Narrated by al-Bukhārī.

[Commentary]
The author (may Allah have mercy on him) cites a ḥadīth that commands and encourages gentleness. The Prophet ﷺ said, “Whoever is deprived of gentleness is deprived of all goodness,” meaning that when a person lacks gentleness—whether in matters that concern himself or in his dealings with others—he forfeits every aspect of goodness linked to those actions. Whenever someone behaves with harshness and severity, the goodness of that deed is lost.

Experience and observation alike confirm this: if a person treats others with violence and sternness, goodness slips away from him and he gains no benefit. But when he deals with them gently, with forbearance, deliberation, and an open heart, he obtains abundant good. Therefore, anyone who seeks goodness should always remain gentle to attain it.

As for the ḥadīth of Abū Hurayrah, a man said, “Messenger of Allah, advise me.” He replied, “Do not become angry.” The man repeated, “Advise me,” and each time the Prophet said, “Do not become angry.” The meaning is: do not be quick-tempered so that every little thing provokes you; rather, be calm and composed