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." (FR)
English reference (FR): Vol. 1, Book 5, Hadith 1177 (FR)
Arabic reference (FR): Book 5, Hadith 1233 (FR)