Messenger of Allah ﷺ said, "There is no life except the life of the Hereafter; so, O Allah! Improve the state of the Ansar and the Muhajirun." And Anas added that the Prophet ﷺ also said, "O Allah! Forgive the Ansar."  

قَالَ رَسُولُ اللَّهِ ﷺ لاَ عَيْشَ إِلاَّ عَيْشُ الآخِرَةِ فَأَصْلِحِ الأَنْصَارَ وَالْمُهَاجِرَةَ وَعَنْ قَتَادَةَ عَنْ أَنَسٍ عَنِ النَّبِيِّ ﷺ مِثْلَهُ وَقَالَ فَاغْفِرْ لِلأَنْصَارِ  

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 ﷺ , replied to them, "O Allah! There is no life except the life of the Hereafter; so please honor the Ansar and the Emigrants."  

كَانَتِ الأَنْصَارُ يَوْمَ الْخَنْدَقِ تَقُولُ نَحْنُ الَّذِينَ بَايَعُوا مُحَمَّدَا عَلَى الْجِهَادِ مَا حَيِينَا أَبَدَا فَأَجَابَهُمُ اللَّهُمَّ لاَ عَيْشَ إِلاَّ عَيْشُ الآخِرَهْ فَأَكْرِمِ الأَنْصَارَ وَالْمُهَاجِرَهْ  

Messenger of Allah ﷺ came to us while we were digging the trench and carrying out the earth on our backs. Messenger of Allah ﷺ then said, "O Allah ! There is no life except the life of the Hereafter, so please forgive the Emigrants and the Ansar."  

جَاءَنَا رَسُولُ اللَّهِ ﷺ وَنَحْنُ نَحْفِرُ الْخَنْدَقَ وَنَنْقُلُ التُّرَابَ عَلَى أَكْتَادِنَا فَقَالَ رَسُولُ اللَّهِ ﷺ اللَّهُمَّ لاَ عَيْشَ إِلاَّ عَيْشُ الآخِرَهْ فَاغْفِرْ لِلْمُهَاجِرِينَ وَالأَنْصَارِ