A helper of Satan is called Tamrikh
Al-Kāfi|Volume 8|Book 1|Chapter 304
عَنْهُ عَنْ صَالِحٍ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنْ أَبَانِ بْنِ عُثْمَانَ عَنْ أَبِي عَبْدِ اللَّهِ (عليه السلام) قَالَ إِنَّ لِإِبْلِيسَ عَوْناً يُقَالُ لَهُ تَمْرِيحٌ إِذَا جَاءَ اللَّيْلُ مَلَأَ مَا بَيْنَ الْخَافِقَيْنِ.
304. From him, from Salih, from Ali Bin Al-Hakam, from Abaan Bin Usman, who has said: Abu Abdullah عليه الصلاة والسلام has said: ‘Iblees (la) has a helper called ‘تَمْرِيحٌ’ Tamreeh. When the night comes, he fills what is between the two palpitations (of the heart)’.
- Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (16/169)
- Ṣaḥīḥ al-Kāfī