Sunan Ibn Majah, Volume 4, Book 25, Hadith 2912 (DarusSalam) ⓘ
It was narrated from Abu Bakr that he went out for Hajj with the Messenger of Allah, and Asma’ bint ‘Umais was with him. She gave birth, at Shajarah, to Muhammad bin Abu Bakr. Abu Bakr came to the Prophet and told him about that, and the Messenger of Allah told him to tell her to take a bath, then begin the Talbiyah for Hajj, and to do everything that the people did, apart from circumambulating the House (Tawaf).
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا خَالِدُ بْنُ مَخْلَدٍ، عَنْ سُلَيْمَانَ بْنِ بِلاَلٍ، حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، أَنَّهُ سَمِعَ الْقَاسِمَ بْنَ مُحَمَّدٍ، يُحَدِّثُ عَنْ أَبِيهِ، عَنْ أَبِي بَكْرٍ، أَنَّهُ خَرَجَ حَاجًّا مَعَ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ وَمَعَهُ أَسْمَاءُ بِنْتُ عُمَيْسٍ فَوَلَدَتْ بِالشَّجَرَةِ مُحَمَّدَ بْنَ أَبِي بَكْرٍ فَأَتَى أَبُو بَكْرٍ النَّبِيَّ ـ صلى الله عليه وسلم ـ فَأَخْبَرَهُ فَأَمَرَهُ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ أَنْ يَأْمُرَهَا أَنْ تَغْتَسِلَ ثُمَّ تُهِلَّ بِالْحَجِّ وَتَصْنَعَ مَا يَصْنَعُ النَّاسُ إِلاَّ أَنَّهَا لاَ تَطُوفُ بِالْبَيْتِ .
also referenced under: Hadith 2912 (Reference) & Book 25, Hadith 3024 (In-Book)