Received: 2020/10/16 | Accepted: 2021/4/18 Abstract The Ahādith of Ahl al-Bayt (PBUH) are among the most important resources for exegesis of the Qur’an so the assessment of their credibility can have a tremendous effect on using them in the science of Tafsir. It seems that the comparative survey of informational and informant validity approaches has significant effects in the validation of exegetical Ahādith. By surveying the above 2 approaches and preferring the informational validity approach based on document study, text study, and reference study, the present article attempts to explain the impact of adopting each of the above approaches and the role of Ahādith in the interpretation of the Qur’an. Using descriptive analysis, this research study explains both of the above approaches and then compares them in terms of exegesis of the Qur’an. The Informant validity approach pays attention to the authority of Āhād news in interpretation of the Noble Qur’an and regarding the preference of information validity approach, the application methods of document study, text study, and reference study are presented. © Abbdollāh Zādeh, A; Izadi, M (2021) A Comparative Study of the Informational and Informant Validity Approaches to the Ahādith of Ahl al-Bayt and Its Role in the Exegesis of the Noble Qur’an. Biannual Journal of Comparative Exegetical Researches, 7 (13) 7-30. Doi: 10.22091/PTT.2020.4224.1537