Integrity Of Hadith (Prophet Muhammad’S Sayings)
You are right. Ahadith are not preserved the way Qur’an is preserved therefore it is incorrect to say that Islam is comprised of the Qur’an and Hadith. We maintain that Islam is in the Qur’an and Sunnah. The Sunnah we received from ijma and tawstur, consensus and collective tradition, prayer, zakat, hajj, and the things pertaining to them. Hadith is arbitrary reporting of individual which needs to be confirmed with the established religion for their acceptance. For details you can read discussions on the Qur’an, Sunnah and Hadith from the book, Meezan, by Ghamidi saheb or his lectures in these topics on our YouTube channel.