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.
bayhaqi:21628Abū Zakariyyā b. Abū Isḥāq And ʾAbū Bakr al-Ḥīrī > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Muḥammad b. ʿAbdullāh b. ʿAbd al-Ḥakam > Ibn Wahb > Jarīr b. Ḥāzim > Ayyūb al-Sakhtiyānī > Nāfiʿ

[Machine] Hafsa, the wife of the Prophet Muhammad, dictated a letter to her slave on a parchment. Nafi' said, "I realized that there were three people who wrote in their correspondence."  

البيهقي:٢١٦٢٨أَخْبَرَنَا أَبُو زَكَرِيَّا بْنُ أَبِي إِسْحَاقَ وَأَبُو بَكْرٍ الْحِيرِيُّ قَالَا ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ أنبأ مُحَمَّدُ بْنُ عَبْدِ اللهِ بْنِ عَبْدِ الْحَكَمِ أنبأ ابْنُ وَهْبٍ أَخْبَرَنِي جَرِيرُ بْنُ حَازِمٍ عَنْ أَيُّوبَ السَّخْتِيَانِيِّ عَنْ نَافِعٍ

أَنَّ حَفْصَةَ زَوْجَ النَّبِيِّ ﷺ كَاتَبَتْ عَبْدًا لَهَا عَلَى رَقِيقٍ قَالَ نَافِعٌ فَأَدْرَكْتُ أَنَا ثَلَاثَةً مِنَ الَّذِينَ أَدَّوْا فِي مُكَاتَبَتِهِمْ