Mansur bin al-Ma'tamar al-Salmi منصور بن المعتمر بن عبد الله السلمي · The Book on Hajj

The Messenger of Allah said: "Whoever performs Hajj for Allah, and he does not have sexual relations nor commit any sin, then his previous sins will be forgiven."

"I twisted the garlands for the Hadi of the Prophet, then he did not assume Ihram, nor did he avoid any clothing."

Ibn Umar was asked: In which month did the Messenger of Allah perform Umrah? He said: 'During Rajab.' So Aishah said: 'The Messenger of Allah did not perform Umrah except that he was with him - meaning Ibn Umar - and he did not ever perform Umrah in the month of Rajab.'"