some of the nawasib tried to portray that ibn abbas had been cursed by imam

so let us see what shiite scholars say about that narration which have been presented by nawasib

al khoi writes in his book “maujma rijal ul hadeeth”

و روى محمد بن عيسى بن عبيد عن محمد بن سنان عن موسى بن بكر الواسطي عن الفضيل بن يسار عن أبي جعفر ع قال: سمعته يقول قال أمير المؤمنين ع: اللهم العن ابني فلان و أعم أبصارهما، كما أعميت قلوبهما الأجلين في رقبتي و اجعل عمى أبصارهما دليلا على عمى قلوبهما.
و هي ضعيفة بالإرسال أولا لجهالة طريق الكشي إلى محمد بن عيسى بن عبيد و بمحمد بن سنان و موسى بن بكر الواسطي ثانيا.

this narration is daif with being mursal, first in regards to the path of kashi to mohammad bin esa bin ubaid, and with mohammad bin sanan and musa bin bakr wasti secondly

[maujam rijal ul hadeeth, vol 10, page 238]

allama ardabaili said about abdullah bin abbas in his jami’i-ur-ruwat

“abdullah bin abbas, who is a lover of imam ali asws and his student; his greatness and his loyalty with imam ali asws is well known; and is not hidden from anyone; allama kashi has narrated some narration which discredit him, however his status is high than that; but the narrations which kashi has narrated, these are five in number; and these are all daif in chains”

[jami’i-ur-ruwaat, vol 1, page 494, printed iran]