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.
ibnmajah:654Abū Bakr b. Abū Shaybah And ʿAlī b. Muḥammad > Wakīʿ > Sufyān > ʿAbd al-Karīm > ʿAmr b. Saʿīd > ʿĀʾishah

The Prophet entered upon her, and a freed slave girl of hers concealed herself. The Prophet asked: "Have her periods begun?" She said: "Yes." He tore a piece of his turban and said: "Cover your head with this."  

ابن ماجة:٦٥٤حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ وَعَلِيُّ بْنُ مُحَمَّدٍ قَالاَ حَدَّثَنَا وَكِيعٌ عَنْ سُفْيَانَ عَنْ عَبْدِ الْكَرِيمِ عَنْ عَمْرِو بْنِ سَعِيدٍ عَنْ عَائِشَةَ

أَنَّ النَّبِيَّ ﷺ دَخَلَ عَلَيْهَا فَاخْتَبَأَتْ مَوْلاَةٌ لَهَا فَقَالَ النَّبِيُّ ﷺ حَاضَتْ فَقَالَتْ نَعَمْ فَشَقَّ لَهَا مِنْ عِمَامَتِهِ فَقَالَ اخْتَمِرِي بِهَذَا