Does a cousin continue to shorten prayers when visiting Sweden, after he has completed four days of shortening prayers in Britain?

A traveler who covers a distance allowing for qasr (83 km), if they intend to reside for four days or more at their destination, must perform the prayers in full. However, if they intend to stay for less than that, or have no specific intention, they may shorten the prayers, even if the duration extends.

Accordingly, if your cousin intends to reside in Britain and Sweden for a period exceeding four days in each stay, it is not permissible for him to combine or shorten prayers.

However, if he intends to reside in Britain for more than four days, then travels to Sweden with the intention of staying for less than that, or with hesitation, then it is permissible for him to combine and shorten prayers during the travel between them and throughout his stay in Sweden. This is because his journey to Sweden is considered a new journey with its own specific rulings.