In another hadith it is mentioned that Rasulullah (sws) once prayed,
“Oh Allah, forgive the sins of the hajis and forgive the sins of him for whom the haji prays.”
It is reported that Rasulullah (sws) made this dua three times which emphasises its importance.
It is also reported that Umar (ra) said,
“The haji has the pardon of Allah and until the twentieth of Rabi al Awwal Allah answers his prayers in which he begs forgiveness for anyone.”