Sahih al-Bukhari 2532

Arabic

حَدَّثَنَا شِهَابُ بْنُ عَبَّادٍ، حَدَّثَنَا إِبْرَاهِيمُ بْنُ حُمَيْدٍ، عَنْ إِسْمَاعِيلَ، عَنْ قَيْسٍ، قَالَ لَمَّا أَقْبَلَ أَبُو هُرَيْرَةَ ـ رضى الله عنه ـ وَمَعَهُ غُلاَمُهُ وَهْوَ يَطْلُبُ الإِسْلاَمَ، فَأَضَلَّ أَحَدُهُمَا صَاحِبَهُ بِهَذَا، وَقَالَ أَمَا إِنِّي أُشْهِدُكَ أَنَّهُ لِلَّهِ‏.‏

English translation

Narrated Qais:When Abu Huraira accompanied by his slave came intending to embrace Islam, they lost each other on the way. (When the slave showed up) Abu Huraira said (to the Prophet), "I make you witness that the slave is free for Allah's Cause

Reference: Sahih al-Bukhari 2532, Book of Manumission of Slaves. English translation by Dr. Muhammad Muhsin Khan.