It wasnarrated from Harim bin Khanbash that the Messenger of Allah(ﷺ)said:
' 'Umrah during Ramadan is equivalent to Hajj (i.e., inreward).'" (IT)
English reference (IT): Vol. 4, Book 25, Hadith 2992 (IT)
Arabic reference (IT): Book 25, Hadith 3106 (IT)