Narrated Mugeerah (may Allaah be pleased with him).
He (the Prophet – may Allah bless him and grant him peace) said:
“The coolness of my eyes has been made in the prayer.”
Reference: Saheeh al-Jaami as-Saghir wa Ziyaadah, Hadeeth Number 3098.
Shaikh al-Albaanee (may Allaah have upon him) said the Hadeeth is Saheeh.
جُعِلَتْ قُرَّةُ عَيني في الصَّلاةِ
خلاصة حكم المحدث: صحيح