Signs of the sound heart—Imaam Ibnul Qayyim
”Its concern to rectify deeds is greater than performing the deed; so it is eager for sincerity in the deed, adherence to the Sunnah of the Messenger and carrying it out perfectly. And alongside this, it bears witness to the favours of Allaah in that deed and its deficiencies in fulfilling the rights of Allaah.
Ighaathatul Lahfaan. Page: 68