Ibn al-Mubarak reported: Al-Awza’i, may Allah have mercy on him said, “Iblis said to his allies: With what have you come to the son of Adam? They said: With everything. Iblis said: Have you come to them before they seek forgiveness? They said: It is impossible, for it is connected to monotheism! Iblis said: I will spread something among them for which they will not seek forgiveness from Allah. Thus, Iblis spread whims among them.”
Source: Sunan al-Dārimī 311
عَنْ ابْنِ الْمُبَارَكِ عَنْ الْأَوْزَاعِيِّ رحمه الله قَالَ قَالَ إِبْلِيسُ لِأَوْلِيَائِهِ مِنْ أَيِّ شَيْءٍ تَأْتُونَ بَنِي آدَمَ فَقَالُوا مِنْ كُلِّ شَيْءٍ قَالَ فَهَلْ تَأْتُونَهُمْ مِنْ قِبَلِ الِاسْتِغْفَارِ قَالُوا هَيْهَاتَ ذَاكَ شَيْءٌ قُرِنَ بِالتَّوْحِيدِ قَالَ لَأَبُثَّنَّ فِيهِمْ شَيْئًا لَا يَسْتَغْفِرُونَ اللَّهَ مِنْهُ قَالَ فَبَثَّ فِيهِمْ الْأَهْوَاءَ
311 سنن الدارمي باب اجتناب أهل الأهواء