When I left on a journey for Johannesburg, I was in the state of haidh.

Answer

A woman set out on a journey of more than 48 miles while she was in the state of her menstruation. The distance covered by her in her state of menses will not be taken into consideration. The distance of 48 miles necessary to secure for her the concession of Qasr will be reckoned from that point where she attained purification from her menstrual period. Hence, if she attained the state of purity at point A and from A to her destination the distance is 48 miles or more, she qualifies for Qasr Salaat.