The Book of Jihad and Expedition (Kitab Al-Jihad wa'l-Siyar)

Muslim :: Book 19 : Hadith 4448

It has been narrated (through a still difterent chain of transmitters) by Anas that the Companions of Muhammad (may peace be upon him) were chanting on the day of the Battle of the Ditch:

We are those who have sworn allegiance to Muhammad

(And made a covenant with him) to follow Islam as long as we live.

Hammad is not sure whether Anas said:" Ala'l-Islam" or," Ala'l-Jihad". And the Holy Prophet (may peace be upon him) was chanting:

O God, the real good is the good of the Hereafter,

So forgive Thou the Ansar and the Muhajirs.

Source materials are from the University of Southern California MSA site
Hadith eBooks converted from Imaan Star