Not graded
Bulugh al-Maram 1006d
وَصَحَّ عَنِ ابْنِ عَبَّاسٍ عِنْدَ اَلْبُخَارِيِّ ; أَنَّهُ كَانَ عَبْدًا 1 .
1 - صحيح . رواه البخاري (9 / 406 - 408/ فتح).
It has been authentically reported from Ibn 'Abbas (RA) by al-Bukhari:
"...that he was a slave".
Cited in Bulugh al-Maram (No. 1006d).