´It was narrated that 'Abdullah said:` "The Messenger of Allah said: 'Perform Hajj and 'Umrah consecutively, for they remove poverty and sin as the bellows removes impurity from iron and gold and silver, and Hajj Al-Mabrur brings no less a reward than Paradise.'''
Hadith Referenceسنن نسائي / كتاب مناسك الحج / 2632
Hadith Gradingالألبانی:حسن صحيح | زبیر علی زئی:إسناده صحيح
´Abdullah (bin Mas'ud) narrated that:` The Messenger of Allah said: "Alternate between Hajj and Umrah; for those two remove poverty and sins just as the bellows removes filth from iron, gold, and silver - and there is no reward for Al-Hajj Al-Mabrur except for Paradise."
Shaykh Dr. Abdur Rahman Freywai
English Commentary: 1: A "Hajj Mabroor" is that pilgrimage in which the pilgrim does not commit any act of disobedience to Allah, and some have interpreted "Hajj Mabroor" to mean an accepted pilgrimage. Its sign is that after performing Hajj, the person becomes a devoted worshipper of Allah, whereas previously he had been heedless. And he repents from all forms of shirk (associating partners with Allah), disbelief, innovation (bid‘ah), and acts of immorality and sin, and thereafter lives his life in accordance with Islamic teachings.
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 810