Burying more than one deceased person in the same grave

A: Every dead person should be buried in a separate grave. They should be put in a Lahd (a crevice on the side of a grave facing the direction faced for Prayer). It is not permissible to bury more than one person in the same grave except in cases of hardship such as in the times of plagues or mass killing when it becomes difficult to put every dead person in a grave due to great numbers of dead people. A righteous person should be put first towards the Qiblah (Ka`bah-direction faced in Prayer) as the Prophet (peace be upon him) did with those who were murdered in the battle of Uhud.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.