Bakr b. 'Abdullah reported:Anas (Allah be pleased with him) had narrated to us that he saw Allah's Apostle (ﷺ) combining Hajj and 'Umra. He (Bakr) said: I asked (about it) from Ibn 'Umar, whereupon he said: We entered into the state of Ihram for Hajj (only). I came to Anas and told him what Ibn Umar had said, whereupon he remarked: (You are treating us) as if we were children

English translation · Sahih Muslim