Abdullah bin Abbas reported,

When Ibrahim, the son of the Messenger of Allah ﷺ, died, the Messenger of Allah ﷺ performed the funeral prayer over him and said, "He has a wet-nurse in Paradise. Had he lived, he would have been a truthful prophet, and had he lived, his maternal uncles, the Copts, would have been freed, and no Copt would ever have been enslaved."

Ibn Majah 1511

Daif

حدثنا عبد القدوس بن محمد حدثنا داود بن شبيب الباهلي حدثنا إبراهيم بن عثمان حدثنا الحكم بن عتيبة عن مقسم

عن ابن عباس قال

لما مات إبراهيم ابن رسول الله ﷺ صلى عليه رسول الله ﷺ وقال إن له مرضعا في الجنة ولو عاش لكان صديقا نبيا ولو عاش لعتقت أخواله القبط وما استرق قبطي

ابن ماجه 1511ضعيف
Contents
Reference
Commentary
Ayat
Collection
Sunan Ibn Majah
Book
Funerals
Chapter
Prayer upon the son of the Messenger of Allah ﷺ and mention of his death
Numbering
Darussalam 1511
Ibn Majah 1511