Jabir b. ʿAbdullah (Allah be pleased with them) reported that when Asma' bint ʿUmais gave birth (to a child) in Dhu'l-Hulaifa. Messenger of Allah ﷺ commanded Abu Bakr (to convey to her) that she should take a bath and enter into the state of Ihram.
أَنَّ رَسُولَ اللَّهِ ﷺ أَمَرَ أَبَا بَكْرٍ ؓ فَأَمَرَهَا أَنْ تَغْتَسِلَ وَتُهِلَّ