Nasai

Urdu marginal note:
“It is his earning” because he has raised them with great effort and hardship.

1؎ :
A hadith of similar meaning is narrated from Abdullah ibn Amr radi Allahu anhu:
"Anta wa maaluka li-abika" (i.e., you and your wealth belong to your father) (Sunan Abi Dawud, no. 3530/Sahih). This also has generality;
there is no restriction of necessity in it.
And in the hadith of Aisha radi Allahu anha in Sunan Abi Dawud (no. 3529), the addition of "idha ihtajtum" (when you are in need) is, according to Abu Dawud, "munkar" (rejected).
However, upon the death of the son (in the presence of a grandson), the father receives only one-sixth,
thus the hadith is specified by this.
That is, the entire wealth of the son does not become the property of the father;
he may only take according to necessity.
And Allah knows best.

Benefits and Issues:

➊
Islam is not a religion of monasticism, nor does it call for renouncing the world. Rather, it teaches how to live in the world in such a way that selflessness, goodwill, and cooperation are kept in view.
In this way, peace and harmony can be established in the world.

➋
Earnings obtained through hard work are lawful (halal) earnings, provided that the rulings of the Shariah are observed in them.
This hard work can be physical, it can be a technical skill or craftsmanship, or it can be intellectual and mental.

➌
A person raises his children and spends on them; therefore, it is the duty of the children to serve their parents as much as possible.

➍
Parents may take wealth from their children as needed; however, they should not neglect the legitimate needs of their children.

Commentary: See the benefits of Hadith: 2137.

(1) The Messenger of Allah (sallallahu alayhi wa sallam) has declared earning through hard work and eating from it to be the best and purest form of earning.

(2) From this blessed hadith, it is also understood that a father has the right and authority to make use of his children's earnings even without their permission. Imam Khattabi (rahimahullah) states that if the children are capable (financially able), then it is obligatory upon them to provide for their parents. All the jurists have declared it obligatory and necessary for children to bear the expenses of their parents.

(3) "Children are also a man's own earning," meaning that a person should either eat from what he earns through his own effort or from the earnings of his children, because they are not considered strangers. And there is no shame in consuming the wealth of one's own children, whereas taking from anyone else—even a real brother—is considered shameful. The intent of Islam is that no person should be a freeloader or a beggar, except in the case of someone who is excused (i.e., has a valid excuse) and is unable to earn; otherwise, becoming a burden on someone is tantamount to taking charity. And Allah knows best.

"You may eat," but only according to necessity. It does not mean that one should squander the wealth of one's children or trouble them without reason. In the ahadith, the word "eat" is used. What is meant are all necessities, whether they pertain to food or clothing, to medical treatment or to living arrangements—but only at the time of need and in accordance with necessity. Since food is the greatest concern for a person, it has been mentioned specifically.

What is the best means of earning and livelihood? Scholars have determined this from their own perspectives. Some have declared trade to be the most virtuous profession because it is a clean and honorable occupation. The Messenger of Allah (sallallahu alayhi wa sallam) himself adopted it. Some scholars have considered manual labor to be superior because the Prophets (alayhimus-salam) generally engaged in some form of manual work. Some have regarded agriculture as the best means of earning because all creatures obtain their sustenance from agriculture. Obviously, the reward for their sustenance goes to the one who cultivates the land, and from his earnings, birds, animals, insects, and poor humans receive free food. Some have considered war booty (mal al-ghanima) to be the best earning, but this is only attainable by the army. In the present era, even for the army, it is not possible; therefore, this opinion is weak. Nor can there always be fighting, nor can everyone fight, nor is booty obtained from every battle. The real matter is that every person, according to his intellectual capacity and inclination, may adopt any profession. If he earns lawfully from it, then that is the best for him.