عَن عَائِشَة
قَالَتْ: كَانَ قُرَيْشٌ وَمَنْ دَانَ دِينَهَا يَقِفُونَ بالمزْدَلفَةِ وَكَانُوا يُسمَّوْنَ الحُمْسَ فكانَ سَائِرَ الْعَرَبِ يَقِفُونَ بِعَرَفَةَ فَلَمَّا جَاءَ الْإِسْلَامُ أَمَرَ اللَّهُ تَعَالَى نَبِيَّهُ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: أَنْ يَأْتِيَ عَرَفَاتٍ فَيَقِفُ بِهَا ثُمَّ يَفِيضُ مِنْهَا فَذَلِكَ قَوْلُهُ عَزَّ وَجَلَّ: (ثُمَّ أفِيضُوا من حَيْثُ أَفَاضَ النَّاس)
Aishah said that Quraish and those who followed their religion used to stand at al-Muzdalifa, and they were called al-Hums,(The plural of ahmas, meaning hardy or rigorous. It is said that this name was applied to them because they boasted of their bravery and endurance. Another explanation is that they observed rites of standing only at Hamss, which is the Kaba) but the rest of the Arabs used to stand at Arafa; then when Islam came God most high commanded His Prophet to go to Arafat (Both Arafa and its pluralArafat are used. It is rather peculiar to find bcth used In the same tradition) and stand there, then go quickly from it.
That is in accordance with the words of Him who is great and glorious, “Then go quickly from where the people went quickly.”(Qur’an, 2, 199) Bukhari and Muslim.