Sahih Bukhari
Beginning of Creation
Volume: 004 / Book Number: 054 / Hadith Number: 470
Narrated Sahl bin Sad:
The Prophet said, "Verily! 70,000 or 700,000 of my followers will enter Paradise altogether; so that the first and the last amongst them will enter at the same time, and their faces will be glittering like the bright full moon."