Musnad Ahmad 32:1357

Aswad ibn Amir narrated to us, Sharik narrated to us, from Abd al-Malik ibn Umayr, from Abu Talhah, from Anas, who said: I passed with the Prophet, peace and blessings of Allah be upon him, on one of the roads of Medina, and he saw a dome made of mud bricks. He said, "Whose is this?" I said, "It belongs to so-and-so." He said, "Know that every building will be a burden upon its owner on the Day of Resurrection, except for what is in a mosque—or in the building of a mosque (Aswad was uncertain)—or, or, or." Then he passed by and did not see it, so he said, "What happened to the dome?" I said, "Its owner was informed of what you said, so he demolished it." He said, "May Allah have mercy on him."