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:4807Abū Bakr Muḥammad b. Ibrāhīm al-Fārisī > Abū Isḥāq al-Aṣbahānī > Abū Aḥmad b. Fāris > Muḥammad b. Ismāʿīl al-Bukhārī > Mūsá b. Ismāʿīl > ʿAbd al-Wāḥid > ʿUthmān b. Ḥakīm > ʿUthmān b. ʿUrwah > Ismāʿīl b. Zayd b. Thābit

[Machine] That Zaid used to perform Witr with five (rak'ahs) and would only say the salaam in the fifth (rak'ah), and my father used to do it like that, and I found it in the book of my father, Mouqayyad.  

البيهقي:٤٨٠٧أَخْبَرَنَا أَبُو بَكْرٍ مُحَمَّدُ بْنُ إِبْرَاهِيمَ الْفَارِسِيُّ أنبأ أَبُو إِسْحَاقَ الْأَصْبَهَانِيُّ ثنا أَبُو أَحْمَدَ بْنُ فَارِسٍ ثنا مُحَمَّدُ بْنُ إِسْمَاعِيلَ الْبُخَارِيُّ ثنا مُوسَى بْنُ إِسْمَاعِيلَ ثنا عَبْدُ الْوَاحِدِ ثنا عُثْمَانُ بْنُ حَكِيمٍ سَمِعَ عُثْمَانَ بْنَ عُرْوَةَ عَنْ إِسْمَاعِيلَ بْنِ زَيْدِ بْنِ ثَابِتٍ

أَنَّ زَيْدًا كَانَ يُوتِرُ بِخَمْسٍ لَا يُسَلِّمُ إِلَّا فِي الْخَامِسَةِ وَكَانَ أَبِي يَفْعَلُهُ كَذَا وَجَدْتُهُ فِي الْكِتَابِ أَبِي مُقَيَّدًا