Riyad as-Salihin, Book 11, Hadith 1275 (In-Book) ⓘ
Abu Hurairah (May Allah be pleased with him) reported: The Messenger of Allah 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))