Aban ibn Abi Ayyash
Aban ibn Abi Ayyash (, "") was a Persian author, who is believed to be a companion of Sulaym ibn Qays and several Shia Imams. He treasured the Book of Sulaym ibn Qays. In hadith studies, he is considered totally unreliable. Biography. According to a few Shia writings, Sulaym ibn Qays fled to Persia, after being threatened by the Umayyad governor Hajjaj ibn Yusuf. The former reportedly sought refuge with Aban, and on his deathbed, he transmitted his book to Aban. The writer Mokhtar Djebli disregards this, for the fact, that Aban was only fourteen. Before his own  death, Aban is then reported to have related Sulaym's traditions to a person called Umar ibn Muhammad, warning that this work shall not fall in the hands of the people. While Abban himself is an extremely weak narrator. And it is one of those lucky persons about which there is consensus among both shia and sunni rijal scholars that he is weak and liar. But they (shias) have accepted from this weak/liar narrator not just few narrations but an entire book, which is sadly the foundation of all their major beliefs. Abban bin Abi Ayyash in Shia Rijal : WEAK (DAEEF) 1. Rijal Al-Khoi No.22 , Abban bin Abi Ayash is weak according to Shaikh Toosi and Ibn Ghadairi. 2. See Rijal Tusi 3. See Rijal Ibn Gadairi 4. See Allama Al Hilli, Daeef Jiddan "Very Weak' Other shia rijal books, confirming the same. 4. See Rijal Ibn Dawud 5. See Jami‘ Al-Ruwat 6. See Al-Mufid min Mujam Rijal Al-Hadith 7. See Mustadrakat Ilm Al-Rijal Abban bin Abi Ayyash in Sunni Rijal: WEAK (DAEEF), ABANDONED (MATRUK), LIAR (KADDHAAB)