It wasnarrated from Wahb bin Khanbash that the Messenger of Allah(ﷺ)said:
" 'Umrah during Ramadan is equivalent to Hajj (i.e. inreward)." (DE)
English reference (DE): Vol. 4, Book 25, Hadith 2991 (DE)
Arabic reference (DE): Book 25, Hadith 3105 (DE)