Hawzah News Agency – The commander of the faithful, Imam Ali peace be upon him says:

مَن قَلَّ وَرَعُهُ ماتَ قَلبُهُ، ومَن ماتَ قَلبُهُ دَخَلَ النارَ.

'One whose piety decreases, his heart dies, and whoever's heart dies will enter the Fire.'

Source: Nahj al-Balagha, Saying 349