قالَ رَسُولُ اللّهِ (صَلَّى اللّهُ عَلَيْهِ ÙˆÙŽ آلِهِ وَسَلَّمَ): إِنَّ هذِهِ الْقُلُوبَ لِتَصْدَأُ كَما يَصْدَأُ الْØ+َـدِيدُ ÙˆÙŽ إِنَّ جَلائَها قَراءَةُ الْقُرآنِ.

The Messenger of Allah (prayers of Allah be upon him and his family) has said: “These hearts rust just as iron rusts; and indeed they are polished through the recitation of the Qur’an.”

Irshadul Qulub; Page 78