عَنْ عُرْوَةَ بْنِ مُضَرِّسِ بْنِ أَوْسِ بْنِ حَارِثَةَ بْنِ لَامٍ رَضِيَ اللَّهُ عَنْهُ أَنَّهُ حَجَّ عَلَى عَهْدِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ فَلَمْ يُدْرِكِ النَّاسَ إِلَّا لَيْلًا وَهُوَ بِجَمْعٍ، فَانْطَلَقَ إِلَى عَرَفَاتٍ فَأَفَاضَ مِنْهَا، ثُمَّ رَجَعَ فَأَتَى جَمْعًا فَقَالَ: يَا رَسُولَ اللَّهِ أَتْعَبْتُ نَفْسِي وَأَنْصَبْتُ رَاحِلَتِي فَهَلْ لِي مِنْ حَجٍّ؟ فَقَالَ: ((مَنْ صَلَّى مَعَنَا صَلَاةَ الْغَدَاةِ بِجَمْعٍ وَوَقَفَ مَعَنَا حَتَّى نُفِيضَ وَقَدْ أَفَاضَ قَبْلَ ذَلِكَ مِنْ عَرَفَاتٍ لَيْلًا أَوْ نَهَارًا فَقَدْ تَمَّ حَجُّهُ وَقَضَى تَفَثَهُ))
It is narrated from Sayyiduna ‘Urwah bin Mudarris (may Allah be pleased with him) that he performed Hajj during the time of the Messenger of Allah (peace and blessings be upon him). He arrived at night when the people were at Muzdalifah. He went to ‘Arafat, then returned from there to Muzdalifah and said: O Messenger of Allah! I have put myself and my mount through great hardship; has my Hajj been accomplished? The Prophet (peace and blessings be upon him) said: Whoever has prayed Fajr with us at Muzdalifah and then remained there until our departure, and before that has come from ‘Arafat at any part of the day or night, his Hajj is complete and he has removed his impurity.