She treats her sons and daughters equally
Bukhari, Muslim and others report that the father of al-Nu'man ibn Bashir (RAA) brought him to the Prophet (PBUH) and said, "I have given this son of mine a slave I have." The Prophet (PBUH) said, "Have you given each of your children the same?" He said, "No." The Prophet (PBUH) told him, "Then take the slave back."
According to another report:
"The Prophet (PBUH) asked, 'Have you done the same for all your children?' [My father] said, 'No,' so the Prophet (PBUH) said, 'Fear Allah (SWT) and treat all of your children equally.'"
According to a third report:
"The Prophet (PBUH) asked, 'O Bishr, do you have any other children?' He said, 'Yes.' The Prophet (PBUH) asked, 'Will you give a similar gift to each of them?' He said, 'No.' So the Prophet (PBUH) said, 'Do not ask me to witness this, because I do not want to witness unfairness.' Then he added, 'Would you not like all your children to treat you with equal respect?' [Bishr] said, 'Of course.' The Prophet (PBUH) told him, 'So do not do it.'"14
So the Muslim woman who truly fears Allah (SWT) treats all her children with equal fairness, and does not favour one above the other in giving gifts, spending money on them, or in the way she treats them. Then all of them will love her, will pray for her and will treat her with kindness and respect.