Analysis of information sources in references of the Wikipedia article "Muzdalifah" in English language version.
With thousands of Hajjis, most of them in motor vehicles, rushing headlong for Muzdalifah [...] There is special grace for praying at the roofless mosque in Muzdalifah called al-Mash'ar al-Haram (the Sacred Grove)
The Qur'an admonishes: "When you hurry from Arafat, remember God at the Sacred Grove (al-mash' ar al-haram)," that is, at Muzdalifah (2:198). Today a mosque marks the place in Muzdalifah where pilgrims gather to perform the special saldt
Muzdalifah is an open plain sheltered by parched hills with sparse growth of thorn bushes. The pilgrims spend a night under the open sky of the roofless Mosque, the Sacred Grove, Al Mush'ar al-Haram. On the morning of the tenth, all depart[.]
The word jamrah is applied to the place of stoning, as well as to the stones.
1204. Jamrah originally means a pebble. It is applied to the heap of stones or a pillar.
Literally "gravel, or small pebbles." The three pillars [...] placed against a rough wall of stones [...]
It was still dark when we arrived at Muzdalifah, four miles away. The Koran instructs us to spend the night at al-Mash'ar al-Haram. the Sacred Grove at Muzdalifah, as one of the conditions for the hajj.