Does the pilgrimage to the House of Allah forgive all sins, including sins of injustice towards people?

The accepted Hajj (pilgrimage) is that by which Allah expiates the sins of His servant, as stated in the prophetic Hadith: "Whoever performs Hajj to this House, and does not engage in obscene speech or commit sin, will return as on the day his mother gave birth to him." As for injustices against people, they must be returned to their owners or their forgiveness must be sought.