2-50 Ahmad ibn Muhammad ibn Yahya al-Attar - may God have Mercy upon him - narrated that his father quoted Ahmad ibn Muhammad ibn Khalid, on the authority of Muhammad ibn Ali al-Kufy, on the authority of Muhammad ibn Sin’an, on the authority of Umar ibn Abdul-Aziz, on the authority of Al-Khaybari, on the authority of Yunus ibn Zabyan and al-Mufaz’zal ibn Umar, on the authority of Aba Abdullah as-Sadiq (MGB), “One who has two characteristics is good. Otherwise you should avoid him.” He was asked