that Ibn ʿAbbas told him and ʿAli bin ʿAbdullah to go to Abu Saʿid and listen to some of his narrations; So they both went (and saw) Abu Saʿid and his brother irrigating a garden belonging to them. When he saw them, he came up to them and sat down with his legs drawn up and wrapped in his garment and said, "(During the construction of the mosque of the Prophet) we carried the adobe of the mosque, one brick at a time while ʿAmmar used to carry two at a time. The Prophet ﷺ passed by ʿAmmar and removed the dust off his head and said, "May Allah be merciful to ʿAmmar. He will be killed by a rebellious aggressive group. ʿAmmar will invite them to (obey) Allah and they will invite him to the (Hell) fire."  

كُنَّا نَنْقُلُ لَبِنَ الْمَسْجِدِ لَبِنَةً لَبِنَةً وَكَانَ عَمَّارٌ يَنْقُلُ لَبِنَتَيْنِ لَبِنَتَيْنِ فَمَرَّ بِهِ النَّبِيُّ ﷺ وَمَسَحَ عَنْ رَأْسِهِ الْغُبَارَ وَقَالَ وَيْحَ عَمَّارٍ تَقْتُلُهُ الْفِئَةُ الْبَاغِيَةُ عَمَّارٌ يَدْعُوهُمْ إِلَى اللَّهِ وَيَدْعُونَهُ إِلَى النَّارِ