Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ahmad:25309ʿAbd al-Razzāq > Maʿmar > al-Zuhrī > ʿUrwah > ʿĀʾishah

[Machine] "When the Prophet ﷺ wanted to go on a military expedition, he was informed that Safiyyah was menstruating. He asked, 'Is she holding us back?' It was then disclosed to him that she had already finished her menstruation, so he allowed her to leave with him."  

أحمد:٢٥٣٠٩حَدَّثَنَا عَبْدُ الرَّزَّاقِ حَدَّثَنَا مَعْمَرٌ عَنِ الزُّهْرِيِّ عَنْ عُرْوَةَ عَنْ عَائِشَةَ

أَنَّ النَّبِيَّ ﷺ حِينَ أَرَادَ أَنْ يَنْفِرَ أُخْبِرَ أَنَّ صَفِيَّةَ حَائِضٌ فَقَالَ أَحَابِسَتُنَا هِيَ؟ فَأُخْبِرَ أَنَّهَا قَدْ أَفَاضَتْ فَأَمَرَهَابِالْخُرُوجِ