حَدَّثَنَا الضَّحَّاكُ بْنُ مَخْلَدٍ حَدَّثَنَا عَبْدُ الْحَمِيدِ بْنُ جَعْفَرٍ حَدَّثَنِي أَبِي عَنْ مَحْمُودِ بْنِ لَبِيدٍ أَنَّ عُثْمَانَ رَضِيَ اللَّهُ عَنْهُ أَرَادَ أَنْ يَبْنِيَ مَسْجِدَ الْمَدِينَةِ فَكَرِهَ النَّاسُ ذَاكَ وَأَحَبُّوا أَنْ يَدَعُوهُ عَلَى هَيْئَتِهِ فَقَالَ عُثْمَانُ رَضِيَ اللَّهُ عَنْهُ سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ مَنْ بَنَى مَسْجِدًا لِلَّهِ بَنَى اللَّهُ لَهُ بَيْتًا فِي الْجَنَّةِ مِثْلَهُ
مسند امام احمد بن حنبل · Hadith 506
It was narrated from Mahmood bin Labeed that 'Uthman (RA) wanted to build (an extension to) the mosque of Madinah, but the people objected to that and wanted to leave it as it was. 'Uthman (RA) said: I heard the Messenger of Allah (PBUH) say: "Whoever builds a mosque for the sake of Allah, Allah will build for him a house like it in Paradise."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020