hadith
3650
۞
Imam Ali (AS) said, Be constant in your remembrance [of Allah] for it illuminates the heart and is surely the best [form of] worship.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : اِسْتَديمُوا الذِّكْرَ فَإنَّهُ يُنيرُ القَلْبَ وَ هُوَ أفْضَلُ العِبادَةِ