The Book on Government (Kitab Al-Imara)
Muslim :: Book 20 : Hadith 4503
It has been narrated on the authority of Abu al-Aswad who said: My father related to me that Ma'qil b. Yasir fell ill. 'Ubaidullah b. Ziyad called on him to inquire after his health. Here follows the tradition as narrated by Hasan from Ma'qil.