"The Messenger of Allah said: 'Whoever builds a mosque for the sake of Allah (from his own wealth), Allah will build a house for him in Paradise.'" (Using translation from Ibn Mājah 737)
قَالَ رَسُولُ اللهِ ﷺ «مَنْ بَنَى لِلَّهِ مَسْجِدًا بَنَى اللهُ لَهُ بَيْتًا فِي الْجَنَّةِ أَوْسَعَ مِنْهُ»