Praise be to Allah.
We put this question to Shaykh Muhammad ibn Saalih al-‘Uthaymeen (may Allaah preserve him) and he answered as follows: “Every person has his own money, so if it reaches the level of nisaab, he should pay zakaat, otherwise he should not. But does he have other children to whom he has given the same? If he has other children then let him fear Allaah and treat them fairly, “to the male, a portion equal to that of two females” [al-Nisa’ 4:11 – interpretation of the meaning]. If he does not have other children, then the matter is clear. If he has other children and he gives them the same as he has given to these, then he has treated them fairly and he does not have to do anything more… And Allaah knows best.”