The evidence from Sunni sources includes: Sahih Muslim, Sahih Altarmathi, Sahih Alnisa'i (three of their top 6 books), Musnad Ahmad Ibn Hanbal, Musnad Albazar, Tafseer Altabari, Tafseer Ibn Katheer and many more. They all narrate that the verse was said when the Prophet (S) had Ali, Fatimah, Hassan and Hussain under the cloth with him and he said the verse. The narrators of the verse in those books include: Abdullah Ibn Abbas, Abu Saeed Alkhidri, Saad Ibn Abi Waqqas, Jabir Ibn Abdullah Alansari, Um Salamah and Aisha. There are only four possibilities in the meaning of AhlulBayt: Ali, Fatimah, Hassan and Hussain, or the wives of the Prophet, or both of them, or all of the extended family of the Prophet. The last possibility is not worthy of discussing. The possibility that it is the wives of the Prophet is flawed because the wives of the Prophet themselves narrated the Hadeeths that the verse is about the five under the cloth and never once has a wife of the Prophet claimed that the verse was revealed about her. Furthermore, it is a historical fact that some of the wives of the Prophet fought Ali and order the arrows to be thrown at the body of Imam Hassan. How can the wives be purified and Ali and Hassan be purified and yet they fight each other? There are many more evidences regarding this verse but that should be sufficient. It is also important to note that the term AhlulBayt includes the Prophet (S). The only reason why we usually say the Prophet and his AhlulBayt is out of respect and because their greatness is through him. However, in this verse the term AhlulBayt refers to the Holy Prophet (S), Imam Ali, Sayyidah Fatimah, Imam Hassan and Imam Hussain (A).