"Whoever performs wudu' and does it well, then sets out for the Masjid and finds that the people have already prayed, Allah will decree for him a reward like that of those who attended (the prayer), without reducing the slightest from their reward." (Using translation from Nasāʾī 855)
عَنْ رَسُولِ اللهِ ﷺ قَالَ «مَنْ تَوَضَّأَ فَأَحْسَنَ الْوُضُوءَ ثُمَّ خَرَجَ عَامِدًا إِلَى الْمَسْجِدِ وَوَجَدَ النَّاسَ قَدْ صَلَّوْا كَتَبَ اللهُ لَهُ مِثْلَ أَجْرِ مَنْ حَضَرَهَا وَلَا يَنْقُصُ ذَلِكَ مِنْ أُجُورِهِمْ شَيْئًا»