Volume 4, Book 52, Number 88:
Narrated Anas:
The Emigrants and the Ansar started digging the trench around Medina carrying the earth on
their backs and saying, “We are those who have given a pledge of allegiance to Muhammad that we
will I carry on Jihad as long as we live.” The Prophet kept on replying, “O Allah, there is no good ex –
cept the good of the Hereafter; so confer Your Blessings on the Ansar and the Emigrants.”