An-Nur 24:59

Wa-itha balagha al-atfaluminkumu alhuluma falyasta/thinoo kama ista/thanaallatheena min qablihim kathalika yubayyinu Allahulakum ayatihi wallahu AAaleemun hakeem

And when the children among you reach puberty, let them ask permission [at all times] as those before them have done. Thus does Allāh make clear to you His verses; and Allāh is Knowing and Wise.

When the children from among you reach puberty, they must seek permission, as the permission is sought by those before them. This is how Allah explains His verses to you. Allah is All-Knowing, All-Wise.