Is it permissible for a person to pray that the Shaytaan may be guided?
Praise be to Allaah.
It is not permissible for anyone to pray in this manner, because it goes against the ruling of Allaah, and against His decree. For Allaah has decreed in His wisdom that the Shaytaan is cursed until the Day of Judgement.
Majmoo’ Fataawa wa Rasaa’il Ibn ‘Uthaymeen (may Allaah have mercy on him), 1/290