Ubaid bin Umair narrated, Abdullah bin Amr (may Allah be pleased with him) used to instruct women that when they performed ghusl (ritual bath) after janabah, they should untie their hair. When this reached Lady Aisha (may Allah be pleased with her), she said: He has put them in great hardship; why does he not just order them to shave their heads? I used to perform ghusl with the Messenger of Allah (peace and blessings be upon him) from a single vessel, and I would only pour three handfuls of water.
Hadith Referenceمسند اسحاق بن راهويه / كتاب الطهارة / 107
Hadith Takhrij«مسلم ، كتاب الحيض ، باب حكم ضفائر المغتسله ، رقم : 331 . سنن ابن ماجه ، رقم : 604 . مسند احمد : 43/6»