"The Prophet (ﷺ) prohibited branding on the face and striking (it)."

This Hadith is Hasan Sahih.
Jami` at-Tirmidhi Book 23, Hadith 43
← Previous Hadith ] There are narrations on this topic from Talhah, Jabir, Abu Sa'eed, and 'Ikrash bin Dhuwaib.

Jami` at-Tirmidhi Book 23, Hadith 42 Next Hadith → That Ibn 'Umar said: "I was reviewed before army, and I was fourteen years old, but he did not accept me. Then I was reviewed before him later in army while I was fifteen years old, and he accepted me."

Nafi said: "I narrated this Hadith to 'Umar bin 'Abdul-'Aziz and he said: 'This is the limit that distinguishes between youth and manhood.' The he wrote to give salaries to whoever reached fifteen years of age.

Jami` at-Tirmidhi Book 23, Hadith 44