Ibn Mas'ud (May Allah be pleased with him) reported:
Messenger of Allah (ﷺ) said, "Shall I not tell you whom the (Hell) Fire is forbidden to touch? It is forbidden to touch a man who is always accessible, having polite and tender nature."[At- Tirmidhii]. (RU)
Arabic/English book reference (RU): Book 1, Hadith 642 (RU)