Abu Hurairah (RA) reported Allah's Messenger (ﷺ) as saying: An 'Umrah is an expiation for the sins committed between it and the next, and Hajj which is accepted will receive no other reward than Paradise.
Abu Hurairah (RA) reported Allah's Messenger (ﷺ) as saying. He who came to this House (Ka’bah) (with the intention of performing Pilgrimage), and neither spoke indecently nor did he act wickedly, would return (free from sin) as on the (very first day) his mother bore him.
This hadith has been narrated on the authority of Mansur with the same chain of transmitters (and the words are): "He who performed Pilgrimage but neither spoke indecently nor acted wickedly."