Ek So Mash'hur Zaeef Ahadis is an Urdu book compiled by Sheikh Ehsan bin Muhammad Al Utaibi while the book was translated into Urdu by Hafiz Imran Ayub Lahori. There are many kids of Hadiths in Islamic literature as described by Maulana Ghulam Jilani Barq in his book Tareekh e Hadith. But our scholars who have no enough knowledge usually use weak Hadiths in their addresses and speeches of Friday sermons. But those hadiths are baseless due to weakness or broken chain of narrators and not reliable due to clash with Koran, other Hadiths and Sunnah of Muhammad PBUH. In following book compiler pointed out these 100 weak Hadiths and informed us to avoid for reference these Hadiths.