Ibn 'Umar said, "Allah has called them the 'dutiful' (al-Abrar) because
they are dutiful (birr) to their parents and children. Just as you have a
duty which you owe your parent, so you have a duty which you owe your child."
An-Nu'man ibn Bashir said that his father had carried him to the Messenger
of Allah, may Allah bless him and grant him peace. He said, 'Messenger of
Allah, I testify to you that I have given an-Nu'man such-and-such. (It was
a slave). The Prophet asked, "Have you given each of your children the same"?"
"No," he replied. He said, "Then testify to someone other than me." Then
the Prophet asked, "Do you not want to show equal kindness to all of them?"
"Indeed I do," he replied. He said, "Then do not do it."