Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Ṣaḥīḥ al-Bukhārī 4099
اللَّهُمَّ إِنَّ الْعَيْشَ عَيْشُ الآخِرَهْ فَاغْفِرْ لِلأَنْصَارِ وَالْمُهَاجِرَهْ
Allāhumma inna al-ʿaysha ʿayshu al-ākhirah fāghfir lilʾanṣāri wa-l-muhājirah
Transliteration generated from the Arabic vowel marks
The full narration
Narrated Anas:Allah's Messenger (ﷺ) went out towards the Khandaq (i.e. Trench) and saw the Emigrants and the Ansar digging the trench in the cold morning. They had no slaves to do that (work) for them. When the Prophet saw their hardship and hunger, he said, 'O Allah! The real life is the life of the Hereafter, so please forgive Ansar and the Emigrants." They said in reply to him, "We are those who have given the Pledge of allegiance to Muhammad for to observe Jihad as long as we live
Source
Ṣaḥīḥ al-Bukhārī · 4099
- Agreed upon as authentic (al-Bukhārī / Muslim)