It is narrated from Sayyidah Aisha (may Allah be pleased with her) that the night prayer of the Messenger of Allah (peace and blessings be upon him) was thirteen rak‘ahs, in which he would perform five rak‘ahs of Witr and would not sit except in the last rak‘ah, where he would recite the tashahhud and then say the salam.
Hadith Referenceسنن دارمي / من كتاب الصللاة / 1620
Hadith Takhrijاس روایت کی سند صحیح اور حدیث متفق علیہ ہے۔ دیکھئے: [بخاري 1140] ، [مسلم 736] ، [أبوداؤد 1338] ، [ترمذي 459]
Brief Explanation
(Commentary on Hadith 1619) That is, he would perform five rak‘ahs with only one tashahhud, and would sit for the tashahhud only in the last rak‘ah, and then would conclude with the salam.