(1) باب مَا جَاءَ فِي الرِّقَاقِ وَأَنْ لاَ عَيْشَ إِلاَّ عَيْشُ الآخِرَةِ
Narrated Sahl bin Sa`d As-Sa`idi:
We were in the company of Allah's Messenger (ﷺ) in (the battle of) Al-Khandaq, and he was digging the trench while we were carrying the earth away. He looked at us and said, "O Allah! There is no life worth living except the life of the Hereafter, so (please) forgive the Ansar and the Emigrants."
Reference: Sahih al-Bukhari 6414
In-book reference: Book 81, Hadith 3
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 76, Hadith 423