Sahih Muslim 216 c
Abu Huraira reported:
I heard it from the Messenger of Allah (ﷺ) saying: A group of my Ummah consisting of seventy thousand persons would enter Paradise; their faces would be as bright as the brightness of the full moon. Abd Huraira said: 'Ukkasha b. Mihsan al-Asadi then stood up wrapping the blanket around him and said: Messenger of Allah, supplicate (before) Allah that He should make me one among them. Upon this the Messenger of Allah (ﷺ) said: O Allah, make him among them. Then stood up a man from the Ansa and said: Messenger of Allah, pray to Allah that He should make me one among them. The Messenger of Allah (ﷺ) said: 'Ukkasha has preceded you in this matter.
حَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى، أَخْبَرَنَا ابْنُ وَهْبٍ، قَالَ أَخْبَرَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، قَالَ حَدَّثَنِي سَعِيدُ بْنُ الْمُسَيَّبِ، أَنَّ أَبَا هُرَيْرَةَ، حَدَّثَهُ قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ ‏"‏ يَدْخُلُ مِنْ أُمَّتِي زُمْرَةٌ هُمْ سَبْعُونَ أَلْفًا تُضِيءُ وُجُوهُهُمْ إِضَاءَةَ الْقَمَرِ لَيْلَةَ الْبَدْرِ ‏"‏ ‏.‏ قَالَ أَبُو هُرَيْرَةَ فَقَامَ عُكَّاشَةُ بْنُ مِحْصَنٍ الأَسَدِيُّ يَرْفَعُ نَمِرَةً عَلَيْهِ فَقَالَ يَا رَسُولَ اللَّهِ ادْعُ اللَّهَ أَنْ يَجْعَلَنِي مِنْهُمْ ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ اللَّهُمَّ اجْعَلْهُ مِنْهُمْ ‏"‏ ثُمَّ قَامَ رَجُلٌ مِنَ الأَنْصَارِ فَقَالَ يَا رَسُولَ اللَّهِ ادْعُ اللَّهَ أَنْ يَجْعَلَنِي مِنْهُمْ ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ سَبَقَكَ بِهَا عُكَّاشَةُ ‏"‏ ‏.‏