Ibn 'Abbas (May Allah be pleased with them) reported:
The Prophet ﷺ came across a caravan at Ar-Rauha' and asked who the people in the caravan were. They replied that they were Muslims. They asked: "Who are you?" He ﷺ said, "I am the Messenger of Allah." Then a woman lifted up a boy to him and asked: "Would this child be credited with having performed the Hajj (pilgrimage)?" Whereupon he ﷺ said, "Yes, and you will have a reward."

[Muslim].

وعن ابن عباس رضي الله عنهما أن النبي ﷺ لقي ركبا بالروحاء فقال: "من القوم؟" قالوا: المسلمون. قالوا من أنت؟ قال: "رسول الله" فرفعت امرأة صبيًا فقالت: ألهذا حج؟ قال "نعم ولك أجر" ((رواه مسلم)).