Reference: al-Muntaqaa min Fataawa Ibn Fowzaan – Volume 3, Page 168, Fatwa No.252
Question: Is it permissible for me to send my maid for the obligatory hajj with a group of women travelling with a hajj package group?
Response: It is not permissible for a woman to travel for hajj or other than hajj except with a mahram, whether she is a maid or not, for that which the Prophet said ﷺ has said:
«It is not permissible for a woman who believes in Allaah and the Last Day to travel the distance of two days, except with a mahram»
And a group of women does not constitute a mahram and, likewise, nor does the hajj package group and this does not exclude her from that which is forbidden in the aforementioned hadeeth.
 Specialising in transporting and serving the hajj pilgrims for the duration of the hajj period.
 Saheeh Muslim/420, Sunan at-Tirmidhee/1169, Musnad Ahmad/7222, Saheeh Ibn Khuzaymah/2523, Saheeh Ibn Hibbaan.