Possible Chain: Yahya bin Ma'in——»'Uthman bin Salah al-Sahmi——»al-Laith bin Sa'd——»Bukayr bin 'Abdullah bin al-Ashj——»Companions

أسعد أبو أمامة بن سهل بن حنيف
405-Abu Umama bin Sahl (0)
Abu Umama
[~8 AH - 100 AH]
Medina/Kufa
Ansar, Aws, B.'Amr B.'Auf,B.Hanash,Child

محمود بن لبيد بن عقبة بن رافع
1830-Mahmud bin Labid bin 'Uqba (0)
Abu Na'im
[d. 97 AH]
Medinah
Ansar,Aws, B.'Abdul Ashhal, Child

بكير بن عبد الله بن الأشج
11154-Bukayr bin 'Abdullah bin al-Ashj (5)
Abu Yusuf, Abu 'Abdullah [Thiqah]
[d. 120 AH or after]
Medina,Egypt
Client,Ally B.Makhzum, Ally B.Ashja',al-Madni,Egypt

الليث بن سعد
20023-al-Laith bin Sa'd (7)
Abu al-Harith [Thiqah Thiqah]
[94 AH - 175 AH]
Asbahan,Egypt
Client, al-Fahmi, al-Masri, Imam

يحيى بن معين
30020-Yahya bin Ma'in (10)
Abu Zakaria [Thiqah Thiqah]
[158 AH - 233 AH/847 CE]
Baghdad/Medina
al-Baghdadi, Ghatafani, Client, Imam

عثمان بن صالح بن صفوان السهمي
30236-'Uthman bin Salah al-Sahmi (10)
Abu Yahya [No Doubt]
[144 AH - 219 AH]
Egypt
B.Sahm,Client,al-Masri