Sunan Ibn Majah Book 25, Hadith 110
“ ‘Umrah during Ramadan is equivalent to Hajj (i.e. in
reward).”
“I heard ‘Abdullah bin Abu Awfa say: ‘We were with the Messenger of Allah (ﷺ) when he performed ‘Umrah. He performed Tawaf (around the Ka’bah) and we performed Tawaf with him. He prayed and we prayed with him, and we were shielding him from the people of Makkah lest anyone harm him.’”
‘ ‘Umrah during Ramadan is equivalent to Hajj (i.e., in reward).’”