Abu rafi narrates that rusulullah said:he who bathes a deceased and conceals his faults allah forgives his forty major sins. He who digs a grave for his deceased brother and buries his is as if he has arranged for his residence until he is resurrected (this man is rewarded as much as he would get for providing a residence for a man till the day of resurrection)
(Tabarani. Majma-uz-Zawaid)