Prophet Jonah (Yunus) also known as Dhan-Nun. About his people Almighty Allah said: Was there any town (community) that believed (after seeing the punishment), and its Faith (at that moment) saved it (from the punishment)? (The answer is none,) - except the people of Jonah; when they believed, We removed from them the torment of disgrace in the life of the (present) world, and permitted them to enjoy for a while. Surah 10: 98
The inhabitants of the town of Nineveh were idolators who lived a shameless life. Prophet Jonah was sent to teach them the worship of Allah. The people disliked his interference in their way of worship, so they argued: "We and our forefathers have worshipped these gods for many years and no harm has come to us."
Related Quran Ayaaths of this Hadith.
Surah 6 : Ayah 86 Surah 10 : Ayah 98 Surah 10 : Ayah 87 Surah 37 : Ayah 139 Surah 4 : Ayah 163"When a person dies, his works end, except for three: ongoing charity, knowledge that is benefited from, and a righteous child who prays for him."
Prophet Mohammed (PBUH)
"The best of what a man leaves behind are three: a righteous child who supplicates for him, ongoing charity the reward of which reaches him, and knowledge that is acted upon after him."
Sunan Ibn Mājah
"Every day two angels come down from Heaven and one of them says, 'O Allah! Compensate every person who spends in Your Cause,' and the other (angel) says, 'O Allah! Destroy every miser.'"
Sahih Bukhari