200 FAQ On Muslims Belief by Hafiz Ibn Ahmed Al Hakami

A--- There are so many Hadiths regarding this. Foremost among which are:

Narrated' Abdullah (May Allah be pleased with him): The Prophet (Peace be upon him) says: "The first cases to be decided among the people (on the Day of Resurrection) will be those of blood-shed.” (Bukhari and Muslim)

Narrated Abu Sa'id Al-Khudri (May Allah be pleased with him): Allah's Messenger (Peace be upon him) says: "When the believers pass safely over (the bridge across) Hell, they will be stopped at a bridge in between Hell and Paradise where they will retaliate upon each other for the injustices done among them in the world, and when they get purified of all their sins, they will be admitted into Paradise. By Him in Whose Hands the life of Muhammad is everybody will recognize his dwelling in Paradise better than he recognizes his dwelling in this world.’ (Sahih Bukhari)