Its virtues and those upon whom Hajj (Pilgrimage) is obligatory Bulugh al-Maram 714
Translation
Ibn ’Abbas (RAA) narrated, The Messenger of Allah (ﷺ) came across some riders at ar-Rauha’ (a place near Madinah). He asked them, “Who are you?" They replied, ‘Who are you?’ He replied, "I am the Messenger of Allah." A woman then lifted up a boy, and asked the Prophet, Will this boy be rewarded for Hajj? The Messenger of Allah (ﷺ) replied, “Yes, and you too will be Rewarded.” Related by Muslim.