Evidence from the Sunnah

Muslim narrated in his Sahih that Ibn Mas'ood said: We were in the company of the Messenger of Allah (PBUH) one night, then we noticed he was missing. We searched for him in the valleys and mountain passes, then we thought that he had either been taken away (by the jinn) or killed secretly. We spent the worst night that any people have ever spent, when morning came we saw him coming from the direction of Hira. We said: O Messenger of Allah, we missed you and looked for you, but we could not find you, and we spent the worst night that any people have ever spent. He (PBUH) said:

A petitioner of the jinn came to me and I went with him and recited the Qur'an to them.

Then he went with us and showed us their tracks, and the traces of their fires.
They (the jinn) asked him (PBUH) about their provision and he said:

Yours is every bone over which the Name of Allah has been mentioned, which will fall into your hands covered with flesh, and every piece of dung is food for your animals.

Then the Messenger of Allah (PBUH) said:

Do not use these two things for Instinja (cleaning after relieving oneself), for they are the food of your brothers.

(Sahih Muslim, Sharh Al-Nawawi, 4/170)

Al- Bukhaari narrated in his Sahih that Abu Sa'eed Al-Khudri said: The Messenger of Allah (PBUH) said to me:

I see that you love sheep and the desert. When you are with your sheep in the desert and you give the Azaan for prayer, raise your voice when giving the call, for no jinn, human or anything else hears the voice of the Muezzin for as far as it carries, but he or it will bear witness for him on the Day of Resurrection. (Sahih Al-Bukhari, 2/104)

From this evidence it is clear that the world of the jinn exists. The jinn exist and are alive; they have powers of understanding and are subject to commands and prohibitions. So the believer who affirms Tawheed must believe in the existence of the Jinn.


Evidence from the Sunnah that Points to the Existence of the Jinn

It was narrated that Matr ibn Abdul-Rahman Al-A'naq said: Umm Abaan bint Al-Waazi' ibn Zaari' ibn 'Aamir Al-'Abdi told me, from her father, that her grandfather Al-Zaari' brought a son of his (or a son of his sister's) to the Messenger of Allah (PBUH). My grandfather said: When we came to the Messenger of Allah in Madina, I said:

O Messenger of Allah, I have with me a son of mine (or a son of my sister's) who is insane. I have brought him to you so that you may pray to Allah for him.

He said:

Bring him close to me” 

So she brought him close to him, and he said:

Open his mouth

So she opened it and the Messenger of Allah spat into it, then he said:

Be gone, enemy of Allah, for I am the Messenger of Allah.

He said that three times, then he said:

Take your son, there is nothing wrong with him, and the problem that he suffered will not come back to him.

Al-Hathami said: This was narrated by Al-Tabrani in Al-Awsat, and by Al-Bazzaar in shortened form. Its Isnaad includes 'Abdul-Hakeem ibn Sufyaan, who was mentioned by Ibn Abi Haatim, but no one criticized him, and the rest* of its men are Thiqaat (trustworthy) . (Majmaa' Al-Zawaa'id, 9/9)

It was narrated from Safiyyah ibn Huyay & that the Prophet (PBUH) said:

The Shaytaan flows through the son of Adam like his blood. (Fath Ul-Baari, 4/282; Muslim Shark Al-Nawawi, 4/155)