In the valley of Al-`Aqiq I heard Allah's Messenger (ﷺ) saying, "To night a messenger came to me from my Lord and asked me to pray in this blessed valley and to assume Ihram for Hajj and `Umra together. "
Sahih al-Bukhari Book 25, Hadith 22
← Previous Hadith Allah's Messenger (ﷺ) used to go (for Hajj) via Ash-Shajara way and return via Muarras way; and no doubt, whenever Allah's Messenger (ﷺ) went to Mecca, he used to offer the prayer in the Mosque of Ash-Shajara; and on his return, he used to offer the prayer at Dhul-Hulaifa in the middle of the valley, and pass the night there till morning.

Sahih al-Bukhari Book 25, Hadith 21 Next Hadith → Salim bin `Abdullah's father said, "The Prophet (ﷺ) said that while resting in the bottom of the valley at Muarras in Dhul-Hulaifa, he had been addressed in a dream: 'You are verily in a blessed valley.' " Salim made us to dismount from our camels at the place where `Abdullah used to dismount, aiming at the place where Allah's Messenger (ﷺ) had rested and it was below the Mosque situated in the middle of the valley in between them (the residence) and the road.

Sahih al-Bukhari Book 25, Hadith 23