As-Sai'b bin Yazid (May Allah be pleased with him) reported:
I was seven years old when I was taken to perform Hajj (pilgrimage). This was during the time the Messenger of Allah ﷺ performed the Hajjat-ul-Wada' (Farewell Pilgrimage).

[Al-Bukhari].

وعن السائب بن يزيد رضي الله عنه، قال: حج بي مع رسول الله ﷺ في حجة الوداع وأنا ابن سبع سنين. ((رواه البخاري)).