Verily Allah has prescribed Ihsan (proficiency, perfection) in all things

Verily Allah has prescribed Ihsan (proficiency, perfection) in all things​

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On the authority of Abu Ya’la Shaddad bin Aws (may Allah be pleased with him), that the Messenger of Allah (peace and blessings of Allah be upon him) said:

Verily Allah has prescribed Ihsan (proficiency, perfection) in all things. So if you kill then kill well; and if you slaughter, then slaughter well. Let each one of you sharpen his blade and let him spare suffering to the animal he slaughters 

[Muslim].