Volume 9 · Book 92 · Hadith 444
Narrated 'Abdullah bin 'Umar: The Prophet had a dream in the last portion of the night when he was sleeping at Dhul-Hulaifa. (I n the dream) it was said to him, "You are in a blessed Batha' (i.e., valley)."
— Sahih Bukhari, Volume 9, Book 92: Holding Fast to the Qur'an and Sunnah, Hadith #444