Riyad as-Salihin 1275
Abu Hurairah (May Allah be pleased with him) reported:
The Messenger of Allah (ﷺ) said, "(The performance of) 'Umrah is an expiation for the sins committed between it and the previous 'Umrah; and the reward of Hajj Mabrur (i.e., one accepted) is nothing but Jannah." [Al-Bukhari and Muslim] .
وعنه أن رسول الله صلى الله عليه وسلم قال‏:‏ ‏
"‏العمرة إلى العمرة كفارة لما بينهما، والحج المبرور ليس له جزاء إلا الجنة‏"‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏