What deeds make a Muslim's Hajj accepted by Allah?

For Hajj to be accepted, two fundamental conditions must be met: sincerity to Allah and adherence to the Messenger of Allah, peace and blessings be upon him, as indicated by verses and hadiths. In addition, the Hajj must be performed with lawful wealth, and one must avoid what Allah has forbidden, such as obscenity, disobedience, quarreling, and all general prohibitions, as well as those specific to the state of ihram (definition). The pilgrim should be gentle and easygoing, show kindness to their brethren, avoid harming Muslims anywhere, and be diligent in learning the rulings of Hajj before embarking on it.