قَالَ قَرِينُهُ رَبَّنَا مَا أَطْغَيْتُهُ وَلَكِن كَانَ فِي ضَلَالٍ بَعِيدٍ
His companion [devil] will say, ‘Our Lord! I did not incite him to rebel [against You], but he was [himself] in extreme error.’
Agha Ali Puya Commentary
Commentary on Quran 50:27
[Pooya/Ali Commentary 50:27] "Companion" refers to Shaytan to whom remained chained every accursed transgressor in the life of the world.