Ruling 1321 — Prayer (Ṣalāh)

It is not necessary for a traveller who wants to stay somewhere for ten days to have the intention to stay there on the first night and the eleventh night. Rather, [it is sufficient if] he makes the intention that he will stay there from sunrise on the first day until sunset of the tenth day, [and if he does so,] he must perform tamām prayers. The same applies if, for example, he makes the intention to stay there from noon on the first day until noon on the eleventh day.