Sayyiduna Jabir (may Allah be pleased with him) said: We performed Hajj with the Prophet (peace and blessings be upon him), and the women and children were with us, so we said the talbiyah on behalf of the children and also did the stoning (rami) for them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9714