Sahih al-Bukhari 4154
Narrated Jabir bin `Abdullah:
On the day of Al-Hudaibiya, Allah's Messenger (ﷺ) said to us' "You are the best people on the earth!" We 
were 1400 then. If I could see now, I would have shown you the place of the Tree (beneath which we gave the
Pledge of Allegiance)." Salim said, "Our number was 1400."
حَدَّثَنَا عَلِيٌّ، حَدَّثَنَا سُفْيَانُ، قَالَ عَمْرٌو سَمِعْتُ جَابِرَ بْنَ عَبْدِ اللَّهِ ـ رضى الله عنهما ـ قَالَ قَالَ لَنَا رَسُولُ اللَّهِ صلى الله عليه وسلم يَوْمَ الْحُدَيْبِيَةِ ‏
"‏ أَنْتُمْ خَيْرُ أَهْلِ الأَرْضِ ‏"‏‏.‏ وَكُنَّا أَلْفًا وَأَرْبَعَمِائَةٍ، وَلَوْ كُنْتُ أُبْصِرُ الْيَوْمَ لأَرَيْتُكُمْ مَكَانَ الشَّجَرَةِ‏.‏ تَابَعَهُ الأَعْمَشُ سَمِعَ سَالِمًا سَمِعَ جَابِرًا أَلْفًا وَأَرْبَعَمِائَةٍ‏.‏