Yahya reported, from Mandal ibn Ali, from al-A'mash, from Ibrahim al-Taymi, from his father, from Abu Dharr, who said: The Messenger of Allah, peace be upon him, said: "Whoever builds a mosque for Allah, even if it is only the size of a sandgrouse's nest, a house will be built for him in Paradise."
يَحْيَى: عَنْ مَنْدَلِ بْنِ عَلِيٍّ، عَنِ الْأَعْمَشِ، عَنْ إِبْرَاهِيمَ التَّيْمِيِّ، عَنْ أَبِيهِ، عَنْ أَبِي ذَرٍّ قَالَ: قَالَ رَسُولُ اللَّهِ عليه السلام " مَنْ بَنَى مَسْجِدًا لِلَّهِ وَلَوْ مِثْلُ مِفْحَصِ قَطَاةٍ بُنِي لَهُ بَيْتٌ فِي الْجَنَّةِ ".