Seek refuge in Allah from this Devil
Uthman ibn Abu al-'As reported that he came to Allah's Messenger (may the peace and blessings of Allah be upon him) and said:
O Allah's Messenger, the Satan intervenes between me and my prayer and my reciting of the Qur'an and he confounds me. Thereupon Allah's Messenger (may the peace and blessings of Allah be upon him) said:, That is (the doing of a) devil who is known as Khinzab, and when you perceive its effect, seek refuge with Allah from it and spit three times to your left. I did that and Allah dispelled that from me.
The companions of the Prophet (may the peace and blessings of Allah be upon him) knew the devil's plots, and took the precautions to protect themselves. They used to seek refuge in Allah from him during all the times, so as to apply the commands of their Lord and their Prophet (may the peace and blessings of Allah be upon him). However, they may experience some whispers during offering the prayer. Such a matter requires asking the Prophet Muhammad, may the peace and blessings of Allah be upon him, to prescribe the effective medicine for this disease so as not to increase the risk of his inability to spend the time in reciting the Quran, remembering his Lord and performing the night prayer in addition to the other acts of worship.
The Prophet (may the peace and blessings of Allah be upon him) said: " when you perceive its effect, seek refuge with Allah from it " If you feel that his whispers will preoccupy you with the world's affairs, so as to disturb your prayers and recitation then seek refuge in Allah from him. He is the one who has power to protect you against his plots
A slave can not get rid of the devil unless he is protected by Allah by remembering him throughout all the times and conditions.