Surah Az-Zukhruf
وَمَن يَعْشُ عَن ذِكْرِ ٱلرَّحْمَٰنِ نُقَيِّضْ لَهُۥ شَيْطَٰنًۭا فَهُوَ لَهُۥ قَرِينٌۭ
“And whoever is blinded from remembrance of the Most Merciful - We appoint for him a devil, and he is to him a companion.”
Translation: Saheeh International
Reflection — Ibn Kathir
The Shaytan is the Companion of the One Who turns away from Ar-Rahman
وَمَن يَعْشُ
(And whosoever Ya`shu (turns away blindly)) means, whoever willfully ignores and turns away
Reflection — Maarif ul Quran
Commentary
وَمَن يَعْشُ عَن ذِكْرِ الرَّحْمَـٰنِ (And whoever makes himself blind against the advice of the Rahman, We assign for him a devil who accompanies him all the time - 43:36) It means that whoever knowingly turns a blind eye towards Allah's advice i.e. the Holy Qur'an and wahy, Allah assigns to him a devil who accompanies him all the time in this world to prevent him from virtuous deeds, and to divert him towards evil. When such a man is resurrected in the Hereafter, his devil will also be with him, till they both are pushed in Hell. (Qurtubi).
What does this verse bring up for you today?