Building graves of cement and steel

A 1: The lawful manner in building graves is to dig a hole in the ground to a depth that protects the deceased and prevents the smell of decomposition from permeating through the ground. A Lahd (a crevice on the side of a grave facing the direction faced for Prayer) or Shaq (a rectangular hole in the bottom of a grave in which the body is buried) is to be made and the corpse placed in it. The grave is then sealed with bricks or the like to prevent the earth from falling on the body of the deceased. (Part No. 7; Page No. 332) The deceased is buried with soil being scattered over its body in the way the Prophet (peace be upon him) used to bury the Sahabah (Companions of the Prophet) and in the way practiced by Muslims. If the soil is too loose, then there is no objection to making walls inside the grave using the usual building materials, without distinguishing a grave from another. However, building the graves from reinforced concrete is impermissible due to the Hadith authentically reported from the Prophet (peace be upon him) by Jabir ibn `Abdullah, may Allah be pleased with them both, who said: Allah's Messenger (peace be upon him) forbade plastering graves, sitting on them or building structures over them. [Reported by Imam Muslim in his Sahih].May Allah grant us success. May peace be upon our Prophet Muhammad, his family, and Companions!