What If You Haven't Do aqiqah When You Were a child?

Praise be to Allah, Lord of the worlds. Shalawat and greetings to our Prophet Muhammad, his family, companions and those who follow their path until the end of time.Regarding the problem of not being diaqiqah when we were young, we can take lessons from the following two fatwas of Shaykh Muhammad bin Sholih Al 'Utsaimin in Liqo-at Al Bab Al Maftuh. This post is a revision of the previous post.
May be useful.
[First]
Question:
There was a father who had ten daughters and all of them had not been done aqiqah, but now they are married. What should the children do? What exactly is the law of aqiqah? Is it true that if a child is not aqiqah, then he will not intercede for his parents?
Answer:
The law of aqiqah is sunnah mu'akkad. Aqiqah for boys with two goats, while for women with a goat. If a boy is content with a goat, that is also permissible.[1]This aqiqah recommendation becomes the obligation of the father (who bears the child's maintenance, pen). If at the time of the recommendation of aqiqah (eg seven days of birth, pen), the parents are in a state of faqir (incapable), then he is not ordered to aqiqah. Because Allah Ta'ala says (which means), "Fear Allah as much as you can" (Surah At Taghobun: 16). However, if at the time of the recommendation of aqiqah, the parents are in a state of abundance, then the aqiqah is still the responsibility of the father, not the mother and not the child.
[Liqo-at Al Bab Al Maftuh, Shaykh Muhammad bin Sholih Al 'Utsaimin, cassette 214, no. 6]
[Second]
Question:
If a person is not aqiqah as a child, is it still recommended for him to be aqiqah as an adult? What are the limits on which aqiqah is still allowed?
Answer:
If his parents were poor at the time when aqiqah was recommended (i.e. on the 7th, 14th, or 21st day of birth, pen), then he does not have any obligations even though his parents may become rich after that. As if a person is poor at the time of the stipulation of zakat, then he is not obliged to pay zakat, even though after that his condition is sufficient. So if the condition of his parents is not capable when the aqiqah is prescribed, then the aqiqah becomes invalid because he does not have the ability.
Meanwhile, if the parents are able when he is born, but he delays the aqiqah until the child is an adult, then at that time the child will still be diaqiqah even though he is an adult.
The main time of aqiqah is the seventh day of birth, then the fourteenth day of birth, then the twenty-first day of birth, then after that it is up to you regardless of the multiple of seven days.
Aqiqah for a boy with two goats. But boys can also have one goat. While the aqiqah for girls with one goat and more importantly does not add to it from this amount.
[Liqo-at Al Bab Al Maftuh, Shaykh Muhammad bin Sholih Al 'Utsaimin, cassette 234, no. 6]
Important Lessons About Aqiqah

1. The law of aqiqah is sunnah mu'akkad and should not be abandoned by people who are able to do it.
2. Aqiqah for sons afdholnya with two goats, but with a goat is also permissible. While aqiqah for girls is with a goat.
3. The main time of aqiqah is the 7th day of birth, then the 14th day of birth, then the 21st day of birth, then after that it's up to you regardless of the day multiples of seven. This opinion is the opinion of the Hambali scholars, but is considered weak by the Maliki scholars. So, if the aqiqah is carried out before or after that time, it is actually permissible. Because what is important is the aqiqah is implemented. (See Sahih Fiqh Sunnah, 2/383)
4. Aqiqah originally became the burden of the father as the provider. Aqiqah is paid from the father's property, not from the child's property. Other people may not carry out aqiqah other than through the father's permission. (See Sahih Fiqh Sunnah, 2/382)
5. Imam Asy Shafi'i requires that those who are recommended aqiqah are people who are capable. (See Sahih Fiqh Sunnah, 2/382)
6. If at the time of the aqiqah (before adulthood), the parents are incapable, then the aqiqah becomes invalid, although some time later the parents become rich. On the other hand, if at the time of aqiqah (before adulthood), the parents are rich, the parents are still encouraged to aqiqah their children even though their children are adults.
7. Imam Asy Shafi'i has the opinion that aqiqah is still recommended even if it is terminated. However, it is recommended that it is not terminated until the age of puberty. If the aqiqah is terminated until the age of puberty, then the obligations of the parents become null and void. However, at that time, the child had a choice, whether he could marry himself or not. (See Sahih Fiqh Sunnah, 2/383)
8. Calculation of the 7th day of birth, the first day is calculated starting from the day of birth. For example, the baby is born on Monday, then the 7th day of birth is Sunday. This means that Sunday is the day of the aqiqah. [Another statement from Shaykh Ibn Uthaimin, Liqo-at Al Bab Al Maftuh, cassette 161, no. 24]
9. The opinion which states, "If a child is not diaqiqahi, then he will not intercede for his parents on the Day of Resurrection", this is a weak opinion as weakened by Ibn al-Qayyim. [Another statement from Shaykh Ibn Uthaimin, Liqo-at Al Bab Al Maftuh, cassette 161, no. 24]

Thus a brief discussion of aqiqah. Hope it's helpful for muslims.
Praise be to Allah, by whose favor all goodness is made perfect. Shalawat and salam to Prophet Muhammad, his family, companions, and those who follow them until the end of time.