that Allah's Messenger (ﷺ) started saying, "Labbaik" from Dhul-Hulaifa when his Mount stood upright carrying him .
Sahih al-Bukhari Book 25, Hadith 3
← Previous Hadith I saw that Allah's Messenger (ﷺ) used to ride on his Mount at Dhul Hulaifa and used to start saying, "Labbaik" when the Mount stood upright.

Sahih al-Bukhari Book 25, Hadith 2 Next Hadith → The Prophet (ﷺ) sent my brother, 'Abdur Rahman with me to Tan'im for the 'Umra, and he made me ride on the packsaddle (of a camel). 'Umar said, "Be ready to travel for Hajj as it (Hajj) is one of the two kind of Jihad".

Sahih al-Bukhari Book 25, Hadith 4