(18) باب مَتَى يَصِحُّ سَمَاعُ الصَّغِيرِ
Narrated Ibn `Abbas:
Once I came riding a she-ass and had (just) attained the age of puberty. Allah's Messenger (ﷺ) was offering the prayer at Mina. There was no wall in front of him and I passed in front of some of the row while they were offering their prayers. There I let the she-ass loose to graze and entered the row, and nobody objected to it.
Reference: Sahih al-Bukhari 76
In-book reference: Book 3, Hadith 18
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 3, Hadith 76