Performing Sajdah on an Object on Which the Body Does not Stay Still
Issue No.962- It is not permissible, as an obligatory precaution, to perform sajdah on an object on which the body does not stay still. However, as we have mentioned earlier, if one can perform the obligatory parts of the prayer in a moving ship or train, etc., his prayer is correct. There is no harm in performing sajdah on a mattress or similar things where the body is not still at first but becomes so later.