Opening the verse
لَا تَقُمْ فِيهِ أَبَدًا ۚ لَّمَسْجِدٌ أُسِّسَ عَلَى ٱلتَّقْوَىٰ مِنْ أَوَّلِ يَوْمٍ أَحَقُّ أَن تَقُومَ فِيهِ ۚ فِيهِ رِجَالٌ يُحِبُّونَ أَن يَتَطَهَّرُوا۟ ۚ وَٱللَّهُ يُحِبُّ ٱلْمُطَّهِّرِينَ
Do not stand [for prayer] within it - ever. A mosque founded on righteousness from the first day is more worthy for you to stand in. Within it are men who love to purify themselves; and Allāh loves those who purify themselves.
Narrated Abu Sa'eed Al-Khudri:"Two men disagreed over the Masjid whose foundation was laid upon Taqwa from the first day (9:108). A man said: 'It is Masjid Quba' and the other said: 'It is the Masjid of the Messenger of Allah (ﷺ).' So the Messenger of Allah (ﷺ) said: 'It is this Masjid of mine
Narrated Abu Hurairah:that the Prophet (ﷺ) said: "This Ayah was revealed about the people of Quba: In it are men who love to purify themselves. And Allah loves those who make themselves pure (9:108)." He said: "They used water to perform Istinja so this Ayah was revealed about them