Well, Tehsin bhai, its never too late to learn something new.
Some well known facts can slip our minds at times.
Fabi Ayyi Ala E Rabbikuma tukajjiban - فَبِأَيِّ آلاءِ رَبِّكُمَا تُكَذِّبَانِ
Then which of the favors of your Lord will you deny? "We do not deny any of our Lord's bounties/favors upon us."