Musnad Ahmad 27:1673

Ya'qub narrated to us, my father narrated to us, from Ibn Shihab, from Salim ibn 'Abdullah, from 'Abdullah ibn 'Umar, who said: I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: "Behold, your remaining time compared to the nations that passed before you is like what is between the 'Asr prayer and the setting of the sun. The people of the Torah were given the Torah, and they worked until the middle of the day, then they became unable, so they were given a qirat each. Then the people of the Gospel were given the Gospel, and they worked until the 'Asr prayer, then they became unable, so they were given a qirat each. Then we were given the Qur'an, and we worked until the setting of the sun, so we were given two qirats each. The people of the two scriptures said: 'O our Lord, why did You give these two qirats each, and gave us a qirat each, while we were more in work than them?' Allah the Exalted said: 'Did I wrong you in any of your wages?' They said: 'No.' He said: 'Then it is My bounty, which I give to whom I will.'"