Some Mu'tazilah Denied Reality of Dreams

 Imam Ibn Abd al-Barr رحمة الله عليه said:

وَلَا يُنْكِرُ الرُّؤْيَا إِلَّا أَهْلُ الْإِلْحَادِ وَشِرْذِمَةٌ ‌مِنَ ‌الْمُعْتَزِلَةِ

“No one rejects (the value of) dreams except the people of ilhâd and a small group of the Mu’tazilah” (at-Tamhîd; v.1, p.285):