Ibn Umar (r.a) saw a man carrying his mother on his shoulders & roaming her round the Ka’abah.
The man said: “O Ibn Umar, do you think I have paid back my debt to her?”
Ibn Umar replied: "Your effort is not equal to a single one of her labor pains. Nonetheless you are doing well & Allah will give you a great reward for the little you are doing. “
[Al Kaba’ar, The Chief Sins, Ad Dhahabi, 8th Major Sin, p. 38]
-- Taken from lionofAllah