وعن ابن عباس رضي الله عنهما
أن النبي صلى الله عليه وسلم قال: «عمرة في رمضان تعدل عمرة أو حجة معي»
The Prophet (sallallahu alayhi wa sallam) said, “(The performance of) Umrah during Ramadan is equal to Hajj (pilgrimage).” Or said, “Equal to the performance of Hajj with me.”.
Riyad as-Salihin 1278, Book 11, The Book of Hajj, Hadith 8. 1 min read