During Abdul Baha's stay in Haifa clean and appropriate baths were not available in the city...During ‘Abdu'l-Bahá’s stay in Haifa, clean and appropriate baths were not available in the city, so the friends and companions were desirous to construct a bath for the Master. When Ustád Áqá Bálá, the Caucasian builder, came for pilgrimage, Dr. Yúnis Khán and Hájí Mírzá Haydar ‘Alí came up with a plan to ask Ustád Áqá Bálá to beseech ‘Abdu'l-Bahá for permission to construct a bath in the Master’s residence.
Ref. Sweet and Enchanting Stories, Aziz Rohani, Page 80
See also : Abdul Baha would not bathe for months