Compiled by Imam Yahya ibn Sharaf al-Nawawi
وعن ابن عباس رضي الله عنهما، أن النبي صلى الله عليه وسلم قال: "عمرة في رمضان تعدل عمرة أو حجة معي". ((متفق عليه))
The Prophet (ﷺ) said, "(The performance of) 'Umrah during Ramadan is equal to Hajj (pilgrimage)." Or said, "Equal to the performance of Hajj with me."[Al-Bukhari and Muslim].