This hadith has to do with the hijab of the Mothers of the Believers, the wives of the Prophet (blessings and peace of Allah be upon him). They used to go out to relieve themselves, but ‘Umar (may Allah be pleased with him) spoke to the Messenger of Allah (blessings and peace of Allah be upon him) about their observing hijab and being prevented from going out of their houses. The reason for this hadith – as was narrated by al-Bukhari and Muslim – was that Sawdah bint Zam‘ah, the wife of the Prophet (blessings and peace of Allah be upon him) went out to answer the call of nature after the hijab had been enjoined – and what is meant by hijab here is covering the head and face – and she was a woman of large build, so when ‘Umar ibn al-Khattab (may Allah be pleased with him) saw her, he said: O Sawdah! By Allah, you cannot hide yourself from us, so think about how you go out. She went back and complained about that to the Prophet (blessings and peace of Allah be upon him) was he was eating his supper. Revelation came to him, then he said: “Permission has been given to you to go out to relieve yourselves.” What is meant in this hadith, as was explained by Hisham ibn ‘Urwah, one of the narrators of the hadith, was answering the call of nature. At that time they used to go out to a spacious flat piece of land to answer the call of nature. Women are also allowed to go out if they have errands to do and valid reasons for going out, and their going out is not limited to relieving themselves, because Allah gave them permission to go out to answer the call of nature after the command of hijab had been sent down, and before people began to have outhouses and bathrooms in their houses. When permission was given to them for that, it was also given for them to go out for other purposes, or to uphold ties of kinship as Allah had enjoined upon them, and the Messenger (blessings and peace of Allah be upon him) had also instructed the women to go out to the prayer on the two Eids, which indicates that what is meant is that women may go out for all kinds of needs..