أَيُّوبُ بْنُ عُتْبَةَ الْيَمَامِيُّ، عَنْ قَيْسِ بْنِ طَلْقٍ

[Machine] I came to the Prophet (peace be upon Him) and his companions while they were building the mosque. When I saw their work, I took the trowel and mixed the clay with it. He (the Prophet) seemed to be pleased with my action, so he took the trowel and they continued working. He said, "Leave the Hanafi and the clay, as it is the most suitable for you." The wording of the hadith is from Aasim ibn Ali.  

جِئْتُ عَلَى النَّبِيِّ ﷺ وَأَصْحَابِهِ وَهُمْ يَبْنُونَ الْمَسْجِدَ فَلَمَّا رَأَيْتُ عَمَلَهُمْ أَخَذْتُ أُحْذِقُ الْمِسْحَاةَ فَخَلَطْتُ بِهَا الطِّينَ فَكَأَنَّهُ أَعْجَبَهُ أَخْذِي الْمِسْحَاةَ وَعَمِلُوا فَقَالَ «دَعُوا الْحَنَفِيَّ وَالطِّينَ فَإِنَّهُ أَضْبَطُكُمْ لِلطِّينِ» وَاللَّفْظُ لِحَدِيثِ عَاصِمِ بْنِ عَلِيٍّ