Hadith
Imam Sadiq (a.s) said:
 الحُجَّاجُ يَصدُرونَ على ثَلاثةِ أصنافٍ؛ صِنفٌ يُعْتَقُ مِن النّارِ وَصِنْفٌ يَخْرُجُ من ذُنوبهِ كَهَيئَةِ يومِ وَلدَتهُ أُمُّهُ وصِنْفٌ يُحْفَظُ في أَهلِهِ ومَالِهِ، فَذلِكَ أَدْنى مَا يَرجِعُ به الحَاجُّ.
The Hajj pilgrims who return home are three groups; one are rescued from the fire (of Hell), another are cleansed from their sins as if they have been just born, and the third group return home with their wealth and family secured. This is the least reward the Hajj pilgrims can obtain.(See al-Wafi; vol. 2 )