SHAFAQNA – The Grand Ayatollah Seyyed Sadeq Rouhani answered a question about burying a dead body.
Question: If a dead person is buried without burial ceremony such as ablution (Qosl) and apply camphor to dead body (Honut), wrap in shroud, Salaat, etc. Can the dead body be taken out and perform the forgotten duty (on the dead body)?
The Grand Ayatollah Rouhani: It is allowed for other ceremonies except Salaat if the body does not smell bad, and if it is not considered as disrespecting (the dead person). But for the purpose of performing Salaat is not allowed; Salaat can be performed near the grave (of the deceased).
Source: PERSIAN SHAFAQNA