Volume 3, Book 46, Number 708:
Narrated Abu Huraira:
On my way to the Prophet I was reciting:– ‘What a long tedious tiresome night! Nevertheless, it
has saved us From the land of Kufr (disbelief).’ I had a slave who ran away from me on the way.
When I went to the Prophet and gave the pledge of allegiance for embracing Islam, the slave showed
up while I was still with the Prophet who remarked, “O Abu Huraira! Here is your slave!” I said, “I
manumit him for Allah’s Sake,” and so I freed him.