The Qur'an is the Muslim sacred scripture, believed to be revealed by God to Prophet Muhammad (s) through Jibril (Gabriel) during 23 years;

Ahl al-Bayt (a) means members of a household or a family. In Islamic terminology it applied for some members of the family of the Holy Prophet (s). The term Ahl al-Bayt have appeared in hadiths in different senses, however, in Shi'a literature, it is used to refer to Imam 'Ali (a), Lady Fatima (a), Imam al-Hasan (a) and Imam al-Husayn (a) and the nine infallible Imams (a) who were the children of Imam al-Husayn (a). The Holy Qur'an has used this term in the al-Tathir and al-Mawadda verses. The Holy Prophet (s) has stated the high position of Ahl al-Bayt in Islam in such hadiths as Hadith al-Safina and Hadith al-Thaqalayn.

"Ahl al-Bayt" has been mentioned in the Qur'an in three places:

Verse 73 of Sura Hud, where it refers to Prophet Abraham (a) and his wife, "They said, 'Are you amazed at Allah's dispensation? [That is] Allah's mercy and His blessings upon you, members of the household. Indeed He is all-laudable, all-glorious.'" (Qur'an 11:73)

في الآية 73 من سورة هود والتي تدور حول النبي إبراهيم وزوجته

(  قالُوا أَ تَعْجَبینَ مِنْ أَمْرِ اللَّهِ رَحْمَتُ اللَّهِ وَ بَرَكاتُهُ عَلَیكُمْ أَهْلَ الْبَیتِ إِنَّهُ حَمیدٌ مَجیدٌ )

Verse 12 of Sura al-Qasas which refers to the family of Prophet Moses (a), "We had forbidden him to be suckled by any nurse since before. So she (Moses' sister) said, 'Shall I show you a household that will take care of him for you and will be his well-wishers?'" (Qur'an 28:12)

في الآية 12 من سورة القصص والتي تتعلق بأهل موسى

.( فَقالَتْ هَلْ أَدُلُّكُمْ عَلى‏ أَهْلِ بَیتٍ یكْفُلُونَهُ لَكُمْ وَ هُمْ لَهُ ناصِحُونَ).

Verse 33 of Sura al-Ahzab which is known as the al-Tathir verse, where God addresses the Prophet (s) and his family, "Indeed Allah

desires to repel all impurity from you, O Ahl al-Bayt, and purify you with a thorough purification." (Qur'an 33:33)

في الآية 33 من سورة الأحزاب والتي اشتهرت بآية التطهير والتي خاطب بها الله تعالى نبيّه وأهل بيته بقوله

( إِنَّما یریدُ اللَّهُ لِیذْهِبَ عَنْكُمُ الرِّجْسَ أَهْلَ الْبَیتِ وَ یطَهِّرَكُمْ تَطْهیراً )