The king's army had traveled a great distance and was overcome by fatigue, so they decided to rest in a valley, where they fell asleep. Quietly, David crept up to the sleeping Saul, removed his spear and cut off a piece of his garment with the sword. David then awakened the king and told him: "Oh king, you come out seeking me, but I do not hate you, and I do not want to kill you. If I did, I would have killed you when you were asleep. Here is a piece of your garment. I could have hacked your neck instead, but I did not. My mission is that of love, not malice." The king realized his mistake and begged for forgiveness.
Related Quran Ayaaths of this Hadith.
Surah 6 : Ayah 84 Surah 4 : Ayah 163 Surah 11 : Ayah 25 Surah 11 : Ayah 32 Surah 11 : Ayah 36 Surah 17 : Ayah 55 Surah 27 : Ayah 15 Surah 27 : Ayah 16"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