وَقَالَ نَافِعٌ إِنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ حَدَّثَهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ صَلَّى مِنْ وَرَاءِ الْعَرْجِ وَأَنْتَ ذَاهِبٌ عَلَى رَأْسِ خَمْسَةِ أَمْيَالٍ مِنْ الْعَرْجِ فِي مَسْجِدٍ إِلَى هَضْبَةٍ عِنْدَ ذَلِكَ الْمَسْجِدِ قَبْرَانِ أَوْ ثَلَاثَةٌ عَلَى الْقُبُورِ رَضْمٌ مِنْ حِجَارَةٍ عَلَى يَمِينِ الطَّرِيقِ عِنْدَ سَلَامَاتِ الطَّرِيقِ بَيْنَ أُولَئِكَ السَّلَامَاتِ كَانَ عَبْدُ اللَّهِ يَرُوحُ مِنْ الْعَرْجِ بَعْدَ أَنْ تَمِيلَ الشَّمْسُ بِالْهَاجِرَةِ فَيُصَلِّي الظُّهْرَ فِي ذَلِكَ الْمَسْجِدِ
مسند امام احمد بن حنبل · Hadith 5598
And Naafi' said that Abdullah ibn 'Umar told him that the Messenger of Allah (PBUH) prayed before (reaching) al-'Arj, as you are going (from Makkah), five miles from al-'Arj, in a mosque beside a hill. Beside that mosque there are two or three graves, and on the graves there are big stones.(That is) on the right-hand side of the road, at the crossroads. 'Abdullah used to set out from al-' Arj after the sun passed the meridian, and he would pray Zuhr in that mosque.