Abu Sa`eed al-Khudree (radiyAllaahu anhu) reports that,
Abu Sa`eed said, ‘whosoever does not believe this then let him recite,
"Indeed Allaah does no injustice, not even an atoms weight. If there is any good [performed], He doubles it and gives from Himself a great reward." [An-Nisaa` (4): 40]’
[An-Nisaa` (4): 40]’(Saheeh Ibn Majah)
The Messenger of Allaah (sallAllaahu alayhi wa sallam) said, "after
Allaah has rescued the believers from the Fire and they become secure,
the argument that one of you falls into with another person over a right
that is due to him in this world will not be greater or more intense
then the argument that the believers will have with their Lord
concerning their brothers who have entered the Fire. They will say, ‘Our
Lord! Our brothers – they used to pray with us, fast with us and
perform Hajj with us yet You have caused them to enter the Fire!’ He
will then say, ‘go and take out [of the Fire] those whom you know.’ They
will then go to them and recognize them by the forms [of their faces]
for the fire will not be able to consume their forms. The Fire will have
burnt some half way up their shins and others up to their ankles and
they will remove them. Then they will say, ‘Our Lord! We have removed
those whom you ordered us to remove.’ He will say, ‘remove [from the
Fire] whoever’s heart contains the weight of a deenaar in faith. Then
whoever’s heart contains the weight of half a deenaar in faith. Then
whoever’s heart contains a mustard seeds weight of faith.’"
Abu Sa`eed said, ‘whosoever does not believe this then let him recite,
"Indeed Allaah does no injustice, not even an atoms weight. If there is any good [performed], He doubles it and gives from Himself a great reward." [An-Nisaa` (4): 40]’