تَنَظَّفُوا بِكُلِّ مَا اسْتَطَعْتُمْ، فَإنَّ اللّهَ تَعالی بَنَی الإسْلامَ عَلَی النِّظَافَةِ.

Try to be clean as much as you can , verily Allah has based the Islam on cleanliness.

Kanz al-Ummal: 6/371