Questioner: Can people see the angels?
Al-Albaani: In the form Allaah created them in, no. In forms which they may imitate, then of course.
And Ai’ishah, may Allaah be pleased with her, and others saw Jibreel in the form of Dihyah al-Kalbi. As for seeing Jibreel in his original form, then that was not granted to anyone except the Prophet صلى الله عليه وسلم.
Al-Hudaa wan-Noor, 322.