The World Federation One Stop Fiqh

Ruling 1267

With regard to someone who does not know how many farsakhs his journey is – for example, he travels to find a lost person and does not know how far he must go before he finds him – he must perform tamām prayers. However, on the return journey, in the event that the distance to his home town or to a place where he intends to stay for ten days is eight or more farsakhs, he must perform qaṣr prayers. Similarly, if during his journey he makes an intention to travel a distance that together with the return journey totals eight farsakhs, he must perform qaṣr prayers.