It was narrated from 'Aishah that she said to the Messenger of Allah (ﷺ): "Safiyyah bint Huyai began menstruating." The Messenger of Allah (ﷺ) said: "Perhaps she has detained us. Did she not circumambulate the House with you?" She said: "Yes." He said: "Then you can leave."
Source: sunnah.com
Other translations
Arabic
أَخْبَرَنَا مُحَمَّدُ بْنُ سَلَمَةَ، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ الْقَاسِمِ، قَالَ أَخْبَرَنِي مَالِكٌ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي بَكْرٍ، عَنْ أَبِيهِ، عَنْ عَمْرَةَ، عَنْ عَائِشَةَ، أَنَّهَا قَالَتْ لِرَسُولِ اللَّهِ صلى الله عليه وسلم إِنَّ صَفِيَّةَ بِنْتَ حُيَىٍّ قَدْ حَاضَتْ . فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لَعَلَّهَا تَحْبِسُنَا أَلَمْ تَكُنْ طَافَتْ مَعَكُنَّ بِالْبَيْتِ " . قَالَتْ بَلَى . قَالَ " فَاخْرُجْنَ " .
sunnah.com