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.

وَحَدَّثَنَا عُقْبَةُ بْنُ مُكْرَمٍ الْعَمِّيُّ، حَدَّثَنَا يَعْقُوبُ بْنُ إِسْحَاقَ، أَخْبَرَنِي سَوَادَةُ بْنُ أَبِي، الأَسْوَدِ حَدَّثَنِي أَبِي أَنَّ مَعْقِلَ بْنَ يَسَارٍ، مَرِضَ فَأَتَاهُ عُبَيْدُ اللَّهِ بْنُ زِيَادٍ يَعُودُهُ ‏.‏ نَحْوَ حَدِيثِ الْحَسَنِ عَنْ مَعْقِلٍ، ‏.‏