It is obligatory to recite Qunoot in the Vitr prayer. In the third rak'ah, it is necessary to recite Surah Fatiha together with Surah Takbeer. Duaye is to offer Qunut, اللهم إنا نستعينك ونستغفرك, ونثني عليك الخير كله ونشكرك ولا نكفرك ونخلع ونترك من يفجرك اللهم إياك نعبد ولك نصلي, ونسجد وإليك نسعى ونحفد نرجو رحمتك ونخشى عذابك إن عذابك بالكفار ملحق ( sarahu maanila Athar, Hadith No. 1475) So you Memorize Dua Qunoot as soon as possible. And before you memorize the du'a , you can recite the following du'a : (Fatawa Hindi 1/160 ; Almuhitul Burhani 2/260 ; Fatawa Tatarkhania 2/344 ; Albahroor Rayek 2 / 42-43 ; Raddul Muhtar 2/6 ) . Therefore, if any dua is recited, it will become kunut (realization) ; Even if one or more verses of the Qur'an containing duas are read, the purpose of Qunoot will be fulfilled. However , it is better to read the dua mentioned in the hadith. (Imam Nawabi's Al-Azkar , page 50)