A:
You have to offer Kaffarah (expiation) of involuntary manslaughter as
you share the responsibility for the death of your friend. The Kaffarah is to free a believing slave, and if you can not afford this, you have to fast for two consecutive months. (Part No. 21; Page No. 355) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.