The Messenger of Allah ﷺ came to us while we were digging the ditch and were carrying the earth on our shoulders. (Seeing our condition), he said: O God, there is no life but the life of the Hereafter. So forgive Thou the Muhajirs and the Ansar. (Using translation from Muslim 1804)   

جَاءَنَا رَسُولُ اللهِ ﷺ وَنَحْنُ نَحْفِرُ الْخَنْدَقَ وَنَنْقُلُ التُّرَابَ عَلَى أَكْتَافِنَا فَقَالَ رَسُولُ اللهِ ﷺ اللهُمَّ لَا عَيْشَ إِلَّا عَيْشُ الْآخِرَةِ فَاغْفِرْ لِلْمُهَاجِرِينَ وَالْأَنْصَارِ  

Al-Muhajirun (i.e. the Emigrants) and the Ansar were digging the trench around Medina and were carrying the earth on their backs while saying, "We are those who have given the pledge of allegiance to Muhammad for Islam as long as we live." The Prophet ﷺ said in reply to their saying, "O Allah! There is no goodness except the goodness of the Hereafter; so please grant Your Blessing to the Ansar and the Emigrants." The people used to bring a handful of barley, and a meal used to be prepared thereof by cooking it with a cooking material (i.e. oil, fat and butter having a change in color and smell) and it used to be presented to the people (i.e. workers) who were hungry, and it used to stick to their throats and had a nasty smell. (Using translation from Bukhārī 4100)   

كَانَ الْمُهَاجِرُونَ وَالْأَنْصَارُ يَحْفِرُونَ الْخَنْدَقَ حَوْلَ الْمَدِينَةِ وَيَنْقُلُونَ التُّرَابَ عَلَى مُتُونِهِمْ وَيَقُولُونَ [البحر الرجز] نَحْنُ الَّذِينَ بَايَعُوا مُحَمَّدَا عَلَى الْإِسْلَامِ مَا بَقِينَا أَبَدَا قَالَ وَيَقُولُ رَسُولُ اللهِ ﷺ وَهُوَ يُجِيبُهُمْ اللهُمَّ لَا خَيْرَ إِلَّا خَيْرُ الْآخِرَةْ فَبَارِكْ فِي الْأَنْصَارِ وَالْمُهَاجِرَةْ قَالَ وَيُؤْتَوْنَ بِمِلْءِ جَفْنَتَيْنِ شَعِيرٍ فَيُصْنَعُ لَهُمْ إِهَالَةٌ سَنِخَةٌ وَهِيَ بَشِعَةٌ فِي الْحَلْقِ وَلَهَا رِيحٌ مُنْكَرَةٌ فَيُوضَعُ بَيْنَ يَدَيِ الْقَوْمِ