When the dawn of the second day came one of the angels appeared in the shape of a man. Jacob began to wrestle with him. They were neck and neck until the angel injured his thigh and Jacob became lame. When the day was breaking, the angel said to him: 'What is your name?" He answered: "Jacob." The angel said : "After today you shall not be called (anything) but Israel." Jacob asked: "And who are you? What is your name?" He vanished. Then Jacob knew that he was one of the angels. Jacob was lame, and for this reason the children of Israel do not eat the thigh muscle on the hip socket.
Related Quran Ayaaths of this Hadith.
Surah 6 : Ayah 84 Surah 4 : Ayah 163 Surah 37 : Ayah 112 Surah 37 : Ayah 113 Surah 38 : Ayah 45 Surah 21 : Ayah 72 Surah 6 : Ayah 84 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