Every human has a partner Jinn

Hadith - Sahih Muslim 6757, Narrated Abdullah ibn Mas'ud, similar narration 6759 by 'Aisha, r.a.
Allah's Apostle said: There is none amongst you with whom is not an attache from amongst the jinn (devil). They (the Companions) said: Allah's Apostle with you too? Thereupon he said: Yes, but Allah helps me against him and so I am safe from his hand and he does not command me but for good.

Distancing Oneself

Fiqh 4.124
Anas reported that the Prophet  said, "The barrier between the eyes of the Jinn and the nakedness of the Children of Adam is [created] when a Muslim discards a garment and says, 'In the name of Allah besides Whom there is no other god'." (Ibn As-Sinni)

Hadith - Ahmad, an-Nasa'i, Dawud, al-Hakim and al-Baihaqi
Qatadah related from 'Abdullah ibn Sarjas who said, "The Messenger of Allah forbade urination into a hole." Said Qatadah, "What is disliked about urinating into a hole?" Said he, "It is the residence of the jinn." [Ibn Khuzaimah and Ibn as-Sakin classified it as sahih]