It is narrated from Abu Salamah bin Abdur Rahman that he asked Ummul Momineen Aisha (may Allah be pleased with her): How was the prayer of the Messenger of Allah (peace be upon him) in Ramadan? She said: The Messenger of Allah (peace be upon him) would not pray more than eleven rak‘ahs in Ramadan or outside of Ramadan. He would pray four rak‘ahs, so do not ask about their beauty and their length 1, then he would pray four rak‘ahs, so do not ask about their (also) beauty and their length, then he would pray three rak‘ahs. Aisha (may Allah be pleased with her) says: I asked: O Messenger of Allah! Do you sleep before praying Witr? He (peace be upon him) said: “Aisha! My eyes sleep, but my heart does not sleep” 2.
Hadith Referenceسنن نسائي / كتاب قيام الليل وتطوع النهار / 1698
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه
'Aisha (may Allah be pleased with her) said that the Messenger of Allah (peace and blessings be upon him) would not say the salam after the two rak'ahs of Witr.
Hadith Referenceسنن نسائي / كتاب قيام الليل وتطوع النهار / 1699