The reason scholars recommend placing straps on the deceased after shrouding.
Machine translationRead the Arabic original
The Shaykh : They are tied and bound until the deceased is placed in the grave. Once he is placed in the grave, the bindings are untied. The scholars said: The bindings are untied because the deceased—may Allah make my and your ending good—swells up when he dies. If he swells while bound, the shroud might burst, so the bindings are untied to ensure that the swelling does not cause it to burst.