I heard ʿUthman bin ʿAffan saying, when people argued too much about his intention to reconstruct the mosque of Messenger of Allah ﷺ, "You have talked too much. I heard the Prophet ﷺ saying, 'Whoever built a mosque, (Bukair thought that ʿAsim, another sub-narrator, added, "Intending Allah's Pleasure"), Allah would build for him a similar place in Paradise.' " (Using translation from Bukhārī 450)   

أَنَّهُ سَمِعَ عُثْمَانَ بْنَ عَفَّانَ عِنْدَ قَوْلِ النَّاسِ حِينَ بَنَى مَسْجِدًا لِرَسُولِ اللهِ ﷺ إِنَّكُمْ قَدْ أَكْثَرْتُمْ وَإِنِّي سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ مَنْ بَنَى مَسْجِدًا قَالَ بُكَيْرٌ حَسِبْتُ أَنَّهُ قَالَ يَبْتَغِي بِهِ وَجْهَ اللهِ بَنَى اللهُ لَهُ بَيْتًا مِثْلَهُ فِي الْجَنَّةِ  

[Machine] I heard the Messenger of Allah ﷺ saying, "Whoever builds a mosque for Allah, Allah will build a house for him like it in Paradise."  

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ مَنْ بَنَى لِلَّهِ مَسْجِدًا بَنَى اللهُ بَيْتًا لَهُ مِثْلَهُ فِي الْجَنَّةِ  

The Messenger of Allah said: "Whoever builds a mosque for the sake of Allah, like a sparrow's nest for Allah or even smaller, Allah will build for him a house in Paradise." (Using translation from Ibn Mājah 738)   

مَنْ بَنَى لِلَّهِ ﷻ مَسْجِدًا وَلَوْ مَفْحَصَ قَطَاةٍ بَنَى اللهُ لَهُ بَيْتًا فِي الْجَنَّةِ  

[Machine] The Messenger of Allah ﷺ said: "Whoever builds a mosque for Allah, even if it is as small as a bird's nest, Allah will build for him a house in Paradise." Al-Abbas said: Ahmad bin Yunus said that it was said to Abu Bakr bin Ayyash: "People differ with you regarding this hadith, they do not consider it authentic." Abu Bakr bin Ayyash replied: "We heard this from Al-Amash, and Al-Amash was a young man."  

قَالَ رَسُولُ اللهِ ﷺ مَنْ بَنَى لِلَّهِ مَسْجِدًا وَلَوْ مِثْلَ مَفْحَصِ قَطَاةٍ بَنَى اللهُ لَهُ بَيْتًا فِي الْجَنَّةِ قَالَ الْعَبَّاسُ قَالَ أَحْمَدُ بْنُ يُونُسَ قِيلَ لِأَبِي بَكْرِ بْنِ عَيَّاشٍ إِنَّ النَّاسَ يُخَالِفُونَكَ فِي هَذَا الْحَدِيثِ لَا يَرْفَعُونَهُ فَقَالَ أَبُو بَكْرِ بْنُ عَيَّاشٍ سَمِعْنَا هَذَا مِنَ الْأَعْمَشِ وَالْأَعْمَشُ شَابٌّ  

[Machine] About al-A'mash, it was mentioned that whoever builds a mosque, even if it is as small as a bird's nest, Allah will build a house for him in paradise. This narration was also reported by Shareek and Jarir ibn Abdul Hamid from al-A'mash as marfu'. It was also reported by al-Hakam from Yazid ibn Shareek from Abu Dhar as marfu'.  

عَنِ الْأَعْمَشِ فَذَكَرَهُ مَرْفُوعًا مَنْ بَنَى مَسْجِدًا وَإِنْ كَانَ مِثْلَ مَفْحَصِ قَطَاةٍ بَنَى اللهُ لَهُ بَيْتًا فِي الْجَنَّةِ وَكَذَلِكَ رُوِيَ عَنْ شَرِيكٍ وَجَرِيرِ بْنِ عَبْدِ الْحَمِيدِ عَنِ الْأَعْمَشِ مَرْفُوعًا وَرُوِيَ عَنِ الْحَكَمِ عَنْ يَزِيدَ بْنِ شَرِيكٍ عَنْ أَبِي ذَرٍّ مَرْفُوعًا