Hasan Ibn Yusuf Ibn Mutahhar Al-Hilli writes:

عبد الله بن سبأ بالسّين المُهملة والباء المُنقّطة تحتها نقطةٌ واحدةٌ غالٍ ملعونٌ حرّقه أمير المؤمنين عليه السّلام بالنّار كان يزعم أنّ عليّا عليه السّلام إله وأنّه نبيّ لعنه الله

“Abdullah Ibn Saba’, with unspotted Sin and with dotted Ba’, a point below it, is a cursed exaggerator whom the commander of the believers (a.) burned with fire. He used to claim that Ali (a.) was God and that he was a prophet, may God curse him.” [Khulasat-ul-Aqwal, page 372]

عبد الله من أصحاب أمير المؤمنين عليه السّلام الّذي رجع إلى الكُفر وأظهر الغلوّ

“Abdullah, who is one of the companions of the Commander of the Faithful (a.), is the one who fell back into disbelief and published exaggeration.” [Khulasat-ul-Aqwal, page 369]