Share of your eyes

The final messenger of God, Muhammad (sallallahu 'alayhi wa sallam - upon whom be peace and blessings) said:
"Give the share of your eyes from 'ibadah (worship)"

Noble companions of the prophet asked:
"O messenger of God, what is the share of our eyes?"

Rasulullah (ASW) replied:
"To look at the mus'haf (The Quran), ponder upon the verses and benefit from the lessons." ,

(Umdat ul-Qāri')