Book Name:Musafir ki Namaz
If it is not known whether the leader is a traveller or a resident then the follower must do Qaṣr [offer shortened Ṣalāĥ] after he has travelled a distance of three days (i.e. approximately 92 km). Before covering three-days-distance [approximately 92 km] he must offer normal Ṣalāĥ [with the complete number of Rak’āt]. If he did not get the chance of asking his leader, then the same previously mentioned ruling of ‘asking but not receiving any reply’ will apply.
(Derived from: Baĥār-e-Sharī’at, vol. 1, pp. 745, 746)
Once I have finished my work I will return!
If a traveller stays somewhere for a few days or even thirteen to fourteen days with the intention of doing some piece of work or waiting for his relatives or returning after doing his work, he will be deemed to be a traveller and will offer shortened Ṣalāĥ even if many years pass in this condition because he has the intention of staying there for less than fifteen days.
(ibid, pp. 747, ‘Ālamgīrī, vol. 1, pp. 139)
The rulings for woman’s journey
It is not permissible for a woman to travel the distance of three days (approximately 92 km) or more, without a Maḥram. She cannot also travel with a minor or a partially insane person. During the journey, she must be accompanied by an adult Maḥram or her husband.
(‘Ālamgīrī, vol. 1, pp. 142)