Jabir bin Abdullah reported,

Bashir's wife said to him, "Give my son your slave boy as a gift, and have the Messenger of Allah ﷺ serve as my witness."So he came to the Messenger of Allah ﷺ and said, "The daughter of so-and-so has asked me to give her son a slave boy as a gift, and she told me to have the Messenger of Allah ﷺ witness it."The Messenger of Allah ﷺ asked him, "Does he have brothers?"He replied, "Yes."The Prophet ﷺ asked, "Have you given each of them the like of what you gave him?"He answered, "No."The Prophet ﷺ said, "Then this is not proper, and I will not bear witness to anything but what is just."

Abu Dawud 3545

Sahih

حدثنا محمد بن رافع حدثنا يحيى بن آدم حدثنا زهير عن أبي الزبير

عن جابر قال قالت

امرأة بشير انحل ابني غلامك وأشهد لي رسول الله ﷺ فأتى رسول الله ﷺ فقال إن ابنة فلان سألتني أن أنحل ابنها غلاما وقالت لي أشهد رسول الله ﷺ فقال له إخوة فقال نعم قال فكلهم أعطيت مثل ما أعطيته قال لا قال فليس يصلح هذا وإني لا أشهد إلا على حق

أبو داود 3545صحيح
Contents
Reference
Commentary
Ayat
Collection
Sunan Abu Dawud
Book
Leasing
Chapter
A man favoring some of his children in gifts
Numbering
Darussalam 3545
Abu Dawud 3545