Man Lā Yaḥḍuruh al-Faqīh
Hadith 712711 - وَ سُئِلَ: عَنْ بَيْتٍ قَدْ كَانَ حَشّاً زَمَاناً هَلْ يَصْلُحُ أَنْ يُجْعَلَ مَسْجِداً فَقَالَ «إِذَا نُظِّفَ وَ أُصْلِحَ فَلاَ بَأْسَ.
Hadith.711 - Abu Al-Hasan al-Awwal, Imam Musa ibn Jafar Al-Kadhim (as) was asked about a house that had been used as a latrine for a period of time and whether it would be suitable to make it into a mosque.
Imam (as) said: "If it is cleaned and repaired, then there is no harm."