Bukhari

Hadith Commentary:
The supplication of the Prophet (sallallahu alayhi wa sallam) was accepted in favor of Anas (radi Allahu anhu).
He lived for more than one hundred years, and at the time of his passing, the number of his descendants exceeded one hundred as well.
That is the bounty of Allah; He grants it to whom He wills.

Hadith Commentary:
(1)
The command of Allah, the Exalted, is:
"Indeed, among your wives and your children are enemies to you, so beware of them." (At-Taghabun: 14)
Children are enemies in the sense that a person, being captivated by their love, may end up disobeying Allah, the Exalted, and His Messenger (sallallahu alayhi wa sallam).
In such circumstances, one should be cautious of them. However, if children are helpful in obeying Allah, the Exalted, then such children are greatly blessed.
In this case, they can be considered a great blessing from Allah, the Exalted.

(2)
Imam al-Bukhari (rahimahullah) has, in the chapter heading, deemed it permissible to supplicate for abundance of children along with blessing, and in the hadith, there is mention of a supplication made by the Messenger of Allah (sallallahu alayhi wa sallam) for Anas (radi Allahu anhu). As a result of this supplication, Allah, the Exalted, granted Anas (radi Allahu anhu) abundance in offspring. He himself states that his daughter Amina informed him that before the arrival of Hajjaj ibn Yusuf in Basra, one hundred and twenty of his own children (born from his loins) had passed away.
(Sahih al-Bukhari, Kitab al-Sawm, Hadith: 1982)
Regarding the children of Anas (radi Allahu anhu) who were alive at that time, Hafiz Ibn Hajar (rahimahullah) has written, referencing Sahih Muslim:
"My sons and grandsons are more than one hundred."
(Fath al-Bari: 4/291)
When he would perform tawaf of the House of Allah (the Ka'bah), more than seventy individuals from among his children would be with him.
('Umdat al-Qari: 15/437)