Because Allah has said (in Surah Al-An'am) «يا معشر الجن والإنس ألم يأتكم رسل منكم يقصون عليكم آياتي‏» "O assembly of jinn and mankind! Did there not come to you messengers from among yourselves, reciting to you My verses..." to the end. (In the Noble Qur'an, in Surah Al-Jinn) «بخسا» means 'loss.' Mujahid said regarding what is in Surah As-Saffat, that the disbelievers have established a relationship between the Lord and the jinn: the Quraysh used to say that the angels are the daughters of Allah and their mothers are the daughters of the chiefs of the jinn. In response to them, Allah said: the jinn know that these disbelievers will have to be present for reckoning (in Surah Ya-Sin, where it is said) «جند محضرون» meaning they will be brought forth at the time of reckoning.

Narrated `Abdur-Rahman bin `Abdullah bin `Abdur-Rahman bin Abi Sasaa Ansari: That Abu Sa`id Al-Khudri said to his father. "I see you are fond of sheep and the desert, so when you want to pronounce the Adhan, raise your voice with it for whoever will hear the Adhan whether a human being, or a Jinn, or anything else, will bear witness, in favor on the Day of Resurrection." Abu Sa`id added, "I have heard this from Allah's Apostle ."