Abdullah bin Sulayman says: Then I asked Bukayr about it, and he said: We do not consider it unlawful, but it is better for women to keep away from them.
(b) Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) says: The bathhouse is an excellent house; it removes dirt and filth and reminds one of Hell.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب القسم والنشوز / 14810