Hadith
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا سُفْيَانُ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ الْقَاسِمِ بْنِ مُحَمَّدِ بْنِ أَبِي بَكْرٍ الصِّدِّيقِ، - رضى الله عنه - عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ خَرَجْنَا مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم لاَ نُرَى إِلاَّ الْحَجَّ فَلَمَّا كُنَّا بِسَرِفَ حِضْتُ فَدَخَلَ عَلَىَّ رَسُولُ اللَّهِ صلى الله عليه وسلم وَأَنَا أَبْكِي فَقَالَ " مَا لَكِ أَنَفِسْتِ " . قُلْتُ نَعَمْ . قَالَ " هَذَا أَمْرٌ كَتَبَهُ اللَّهُ عَزَّ وَجَلَّ عَلَى بَنَاتِ آدَمَ فَاقْضِي مَا يَقْضِي الْحَاجُّ غَيْرَ أَنْ لاَ تَطُوفِي بِالْبَيْتِ " .
It was narrated that 'Aishah said:"We went out with the Messenger of Allah (ﷺ) with no intention other than Hajj. When he was in Sarif I began menstruating. The Messenger of Allah (ﷺ) entered upon me and I was weeping. He said: 'What is the matter with you? Has you Nifas begun?' I said: 'Yes.' He said: 'This is something that Allah the Mighty and Sublime has decreed for the daughters of Adam. Do what the pilgrims do but do not perform Tawaf around the House
Sahih · Abu Ghuddah
Sunan an-Nasa'i 348 ·Book 3, Hadith 1·Also available on sunnah.com·