The 99 Names · Verse Keys
Ash-Shaakir الشاكر
The Appreciative, who rewards a small deed with a great reward.
Explanation
A detailed explanation of this name (in Arabic) is in: Sharh Asma' Allah al-Husna fi Daw' al-Kitab wa al-Sunnah — Dr. Sa'eed ibn 'Ali ibn Wahf al-Qahtani — p. 125 ↗
The author explains this name together with: Ash-Shakoor
Evidence
﴿۞إِنَّ ٱلصَّفَا وَٱلۡمَرۡوَةَ مِن شَعَآئِرِ ٱللَّهِۖ فَمَنۡ حَجَّ ٱلۡبَيۡتَ أَوِ ٱعۡتَمَرَ فَلَا جُنَاحَ عَلَيۡهِ أَن يَطَّوَّفَ بِهِمَاۚ وَمَن تَطَوَّعَ خَيۡرࣰا فَإِنَّ ٱللَّهَ شَاكِرٌ عَلِيمٌ ١٥٨﴾
Call upon Allah by this name
“To Allah belong the Beautiful Names, so call upon Him by them” — Al-A'raf 180
Example for practice
اللهم إنك شاكر عليم، فاقبل مني ما عملت لوجهك، ولا تُضِع سعيي
O Allah, You are Ash-Shaakir, the All-Knowing; accept what I have done for Your sake and do not let my effort be lost.
An example for practice, not a transmitted text — following the Quranic way of closing a request with the fitting name (see Ibn al-Qayyim, Bada'i' al-Fawa'id 2/249).