It wasnarrated that 'Aishah said:
"The Messenger of Allah (ﷺ) usedtosay Taslim after every two Rak'ah, and he would perform Witr withone Rak'ah." (DE)
English reference (DE): Vol. 1, Book 5, Hadith 1177 (DE)
Arabic reference (DE): Book 5, Hadith 1233 (DE)