كتاب الدعوات
16  
The Book of Du'a (Supplications)
(253)
Chapter: Superiority of Auliya' and their Marvels
(253)
- باب كرامات الأولياء وفضلهم
Riyad as-Salihin 1510
Ibn 'Umar (May Allah be pleased with them) reported:
I never heard 'Umar (May Allah be pleased with him) relating anything that he conceived it to be so-and-so, but that it proved to be as he had conceived it."

[Al-Bukhari].

وعن ابن عمر رضي الله عنهما قال‏:‏ ما سمعت عمر رضي الله عنه يقول لشيء قط‏:‏ إني لأظنه كذا إلا كان كما يظن‏.‏ ‏(‏‏(‏رواه البخاري‏)‏‏)‏
Reference : Riyad as-Salihin 1510
In-book reference : Book 16, Hadith 46