Sahih Muslim Book 27, Hadith 66
This hadith has been narrated on the authority of Ibn 'Umar through another chain of transmitters.
When a slave looks to the welfare of his master and worships Allah well, he has two rewards for him.
For a faithful slave there are two rewards. By him in Whose hand is the life of Abu Huraira, but for Jihad in the cause of Allah, and Pilgrimage and kindness to my mother, I would have preferred to die as a slave. He (one of the narrators in the chain of transmitters) said: This news reached us that Abu Huraira did not perform Pilgrimage until his mother died for (keeping himself constantly) in her service.