[1] Al-Bakri (1014 - 1094 AD) said: "They are mountains on the road from Mecca to Medina, in the Nakhel Valley.
At the east of Ubla a mountain called Dhu al-Marqa'a, which is the mineral of Bani Salim.
When you bypasses the Al-Naziya spring there is a water called Hudbiyah, they are three wells, with no palms or trees, It is surrounded by villages, including Qia, three leagues apart.
[4] Alhazmi al-Hamdani (1153 -1188 AD) said: "Al-Kindi said: 'Then you go from Medina up to Mecca and pass through a valley called Arifatan, which has no water or pasture.
[5] Nasr Al-Iskandari (Died in 1166 AD) said: "As for Ubla, they are mountains at or near the Bani Salim mines".
[7] Abdulmoumen al-Baghdadi (1260 -1338 AD) said: "Mountains with water, including the well of Maouna, Dhu Sa'ada, and others that are connected to each other, for Beni Salim Tribe".