قَالَ لِبَعْضِ وُلْدِهِ يَا بُنَيَّ عَلَيْكَ بِالْجِدِّ لَا تُخْرِجَنَّ نَفْسَكَ مِنَ حَدِّ التَّقْصِيرِ فِي عِبَادَةِ اللَّهِ عَزَّ وَ جَلَّ وَ طَاعَتِهِ فَإِنَّ اللَّهَ لَا يُعْبَدُ حَقَّ عِبَادَتِهِ.
“My son, you must work hard and do not allow your soul to lead you out of a feeling of always falling short in worshipping Allah, the Most Majestic, the Most Holy, and in obedience to Him; Allah is not worshipped as truly as He should be worshipped.”