Merits of the Helpers in Madinah (Ansaar)
Bukhari :: Book 5 :: Volume 58 :: Hadith 140
Narrated Anas bin Malik:
On the day of the battle of the Trench (i.e. Ghazwat-ul-Khandaq) the Ansar used to say, "We are those who have given the pledge of allegiance to Muhammad for Jihad (i.e. holy fighting) as long as we live." The Prophet , replied to them, "O Allah! There is no life except the life of the Hereafter; so please honor the Ansar and the Emigrants."
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