The tradition mentioned above has also been transmitted by Ibn Umar from the Prophet ﷺ to the same effect as mentioned by Ibrahim bin Musa through a different chain.
Hadith ReferenceSunan Abi Dawud / The Book of Manumission of Slaves (Kitab Al-Itaq) / Hadith: 3944
Hadith Gradingزبیر علی زئی:صحيح بخاري (2525) صحيح مسلم (1501), مشكوة المصابيح (3397)