Hajj is the fifth among the pillars of Islam. It is an act of worship for those who can find a way to it. Hajj involves hardship that entails facilitation. An example is that if a Muhrim woman gives birth during her state of Ihrām and before embarking upon the rituals of Hajj, she may take a bath, purify herself, and assume Ihrām for Hajj. She, however, may not perform Tawāf except after her complete purification. This represents facilitation for her, so that she will not miss Hajj on its specific days. The Mother of the Believers ‘Ā’ishah (may Allah be pleased with her) relates that Asmā’ bint ‘Umays gave birth. This is called Nefās in Arabic, for the coming out of a Nafs (a soul), which is the baby or blood. Asmā’ bint ‘Umays was the wife of Abu Bakr as-Siddīq (may Allah be pleased with both of them). When she gave birth to her son Muhammad ibn Abi Bakr (may Allah be pleased with both of them) on the way to the Farewell Hajj, in the tenth Hijri year, the Messenger of Allah (may Allah's peace and blessings be upon him) commanded her husband Abu Bakr to order her to take a bath to remove her postpartum blood and assume Ihrām for Hajj. This bath is meant for cleanliness, not purification, for a newly-delivered woman is like a menstruating woman: she does not become pure unless the blood stops flowing. A woman in a menstrual or postpartum period can validly perform all the rituals of Hajj except for Tawāf, as indicated by a Hadīth narrated by An-Nasā’i and Ibn Mājah, in which Abu Bakr (may Allah be pleased with him) reported that the Messenger of Allah (may Allah's peace and blessings be upon him) said: "and she should do what people do," of Dhikr and Talbiyah, and stand at Mina, ‘Arafāt, and Muzdalifah, "except that she should not perform Tawāf around the House," i.e., she should not perform Tawāf Ar-Rukn around the honorable Ka‘bah unless she becomes pure of the postpartum bleeding, after which she can do Tawāf. His statement "at the tree" refers to the tree underneath which the Prophet (may Allah's peace and blessings be upon him) used to stop when he left Madīnah for Makkah to perform ‘Umrah or Hajj. He would alight in the shade of this tree, pray, and then assume Ihrām for ‘Umrah or Hajj. In the version by Jābir ibn ‘Abdullāh, narrated by Muslim, she gave birth in Dhu al-Hulayfah, and in the version by An-Nasā’i: "in Al-Baydā’". These three locations are close to each other. The tree is located in Dhu al-Hulayfah, and Al-Baydā’ lies on the outskirts of Dhu al-Hulayfah. The Hadīth points to the validity of Ihrām by a woman in her postpartum period or menstruation as she takes a bath for assuming Ihrām. It shows Islam's facilitation and care for women who newly delivered in order for them not to miss Hajj and become obliged to return in a subsequent year. It also indicates that Talbiyah should be proclaimed upon assuming Ihrām for Hajj or ‘Umrah, and that women are like men in this regard..