Sahih al-Bukhari 993
Book 14: Witr Prayer · Hadith 4
Hadith text
Narrated `Abdullah bin `Umar:The Prophet (ﷺ) said, "Night prayer is offered as two rak`at followed by two rak`at and so on, and if you want to finish it, pray only one rak`a which will be witr for all the previous rak`at." Al-Qasim said, "Since we attained the age of puberty we have seen some people offering a three-rak`at prayer as witr and all that is permissible. I hope there will be no harm in it
Abdullah bin Umar (رضی اللہ عنہما) bataate hain ke Nabi ne farmaya: "Raat ki namaz do-do rakat karke padhi jaati hai, aur agar tum ise khatam karna chaho, sirf ek rakat padho jo pichhli sab rakaton ka Witr ban jayegi." Al-Qasim ne kaha: "Jab se hum balig hue hain, humne kuch logon ko teen rakaton ka Witr padhte dekha hai, aur yeh sab jaiz hai. Mujhe ummeed hai isme koi harj nahi."
Sahih al-Bukhari 993 · Book 14, Hadith 4