What are hadiths about selfishness? Examples of hadiths about selfishness…
According to Anas (b. Malik) (ra) the Messenger of Allah (saw) said, “By the One Who holds the soul of Muhammad in His hand, none of you is a believer until he loves for his brother the goodness that he loves for himself.” (al-Nasaʾi, al-Iman, 19
According to Haritha b. Wahb al-Khuzaʿi (ra), the Prophet (saw) said, “Shall I inform you about the people of Paradise? They are comprised of every meek and humble person, and those who, if they make an oath to Allah, they fulfill it. Shall I inform you about the people of the Fire? They are comprised of every cruel, violent, and proud person.” (al-Bukhari, al-Adab, 61; M7187, Muslim, al-Janna, 46)
ʿAbd al-ʿAziz b. Marwan said he heard Abu Hurayra (ra) say, “I heard the Prophet (saw) say, ‘What is evil in a man is relentless niggardliness and unrestrained cowardice.’” (Abu Daʾud, al-Jihad, 21; HM8246, Ibn Hanbal, II, 320)
According to Thawban (ra), the Messenger of Allah (saw) said, ”While leading people in prayer, one is not allowed to pray to Allah specifically for himself and ignore others; if he did so, he betrayed them…” (Abu Daʾud, al-Tahara, 43)
Source: Presidency Of Religious Affairs The Turkey, Islam Through Hadiths