younas bin khubab

we find in tehzeeb يونس بن خباب الأسيدي مولاهم أبو حمزة ويقال أبو الجهم
الكوفي

he was a shia, keep in mind


ibn moin said about younas
وقال بن معين كان ثقة وكان يشتم عثمان
"he was thiqa, but spoke ill of uthman"

and saji said
وقال الساجي صدوق في الحديث تكلموا فيه من جهة رأيه السوء
he was truthful in hadeeth but there are debates because of his bad
opinions

وقال بن شاهين في الثقات قال عثمان بن أبي شيبة يونس بن خباب ثقة صدوق
ibn shaheen said he is thiqa
and ibn sheebah said he is thiqa sudooq

but the main reason i could see why everyone is against him is that he
spoke ill of uthman + he is shia

so the result is

he is bad guy,
and nasibis are good guyz