Qatadah said: ‘One of Iblis’s devils is called Qubqub. Iblis has ordered him to rest for forty years.’ Whenever a youth enters this path (of righteousness), Iblis tells Qubqub: ‘There he is, I have been preparing you for this type of youth. Deceive and seduce him.’
lbn Al-Jawzi in Dhamm ai-Hawti, 145.
Posted from the excellent Book – The Devil’s Deceptions (Talbis Iblis): By Imam Abu’l Faraj Ibn Al Jawzi. You are encouraged to buy this very beneficial Book – around 600 pages.