Sahih Bukhari
Merits of the Helpers in Madinah (Ansaar)
Volume: 005 / Book Number: 058 / Hadith Number: 141
Narrated Sahl:
Allah's Apostle came to us while we were digging the trench and carrying out the earth on our backs. Allah's Apostle then said, "O Allah ! There is no life except the life of the Hereafter, so please forgive the Emigrants and the Ansar."