Musnad Abi Ya'la 6377 — the Messenger of Allah ﷺ said: When Allah

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When Allah Almighty created Adam (peace be upon him), He passed His Hand over his back, and from it fell all the souls of his descendants who were to be born until the Day of Resurrection. Then Allah Almighty presented them to Adam (peace be upon him), and he saw on the face of every person among them a gleam of light. Adam (peace be upon him) saw one man among them whose gleam pleased him greatly, and he asked: O my Lord, who is this? Allah Almighty said: This is one of your offspring, and his name is Dawud. Adam (peace be upon him) said: O my Lord, how long a life have You decreed for him? Allah Almighty said: Sixty years. He said: O Lord, add forty years to his life from my life. Allah Almighty said: Then it will be written and sealed, and there will be no change in it. So when there remained of the life of Adam (peace be upon him) those forty years which he had gifted to Dawud (peace be upon him), the Angel of Death came to him. Adam (peace be upon him) said: But forty years of my life still remain? The angel said: Did you not give them to your son Dawud? He (peace and blessings be upon him) said: So Adam (peace be upon him) denied it, and his descendants too came to deny; Adam (peace be upon him) erred, and his descendants too came to err; and Adam (peace be upon him) forgot, and his descendants too came to forget. Then Adam (peace be upon him) saw among his offspring the strong and the weak, the rich and the poor, and those afflicted with trials, and he said: O my Lord, why did You not make them all equal? Allah Almighty said: I wished to be thanked."