Hawzah News Agency – The merciful prophet of Islam (pbuh) says:

تَنَظَّفوا بكُلِّ ما استَطَعتُم؛ فإنَّ اللَّهَ تعالى‏ بَنَى الإسلامَ علَى النَّظافَةِ، ولَن يَدخُلَ الجَنَّةَ إلّا كُلُّ نَظيفٍ.

'Keep yourselves as clean as possible, for Allah Almighty built Islam on cleanliness, and no one will ever enter Heaven unless they are clean.'

Source: Kanz al-Ummal, no. 26002