He recites the last verses of Soorat al-Baqarah in Witr prayer

If the imam always recites the last verses of Soorat
al-Baqarah in Taraweeh or in Shafa’ and Witr because he believes that it is
Sunnah, this is a mistake. What is proven from the Prophet (peace and
blessings of Allaah be upon him) is that he used to recite al-A’la and
al-Kaafiroon and al-Ikhlaas. It was narrated from Abu Dawood (1423),
al-Nasaa’i (1736) and Ibn Maajah (1171 – this version was narrated by him –
that Ubayy ibn Ka’b (may Allaah be pleased with him) said: The Messenger of
Allaah (peace and blessings of Allaah be upon him) used to pray Witr
and recite Sabbih ismi Rabbika al-A’la (al-A’la 87), Qul yaa
ayyhu’l-kaafiroon (al-Kaafiroon 109) and Qul Huwa Allaahu ahad
(al-Ikhlaas 112). 

Classed as saheeh by al-Albaani in Saheeh al-Nasaa’i. 

Whoever wants to follow
the Prophet (peace and blessings of Allaah be upon him), this is his
Sunnah. There is nothing wrong with reciting other passages of the Qur’aan,
but one should not persist in reciting a specific passage and never reciting
anything else, for that may come under the heading of reprehensible
innovation (bid’ah), because he is singling out a specific passage for this
prayer that the Messenger (peace and blessings of Allaah be upon him)
did not single out, and seeking to draw close to Allaah by means of
something that He has not prescribed, which is bid’ah (innovation).

 And Allaah knows best.