From Sahih Bukhari (Hadith 3797):
Narrated Sahl:Allah's Messenger (ﷺ) came to us while we were digging the trench and carrying out the earth on our backs. Allah's Messenger (ﷺ) then said, "O Allah ! There is no life except the life of the Hereafter, so please forgive the Emigrants and the Ansar
Reference: Bukhari 3797