WRONG PRAYER INDEED

I was called upon one day to pray for some people in one occasion . I prayed for them , and I asked God to grant them all their prayer request. Soon after the prayer, one of the prophets in that place, shouted at me. " Nonye! That was a wrong prayer to pray" . While I was wandering about all that I have prayed for, he shouted again. " Do not ask God to grant people all their heart  desires again, what of if their heart desire is to do evil or to hurt you that is praying for them.?"  As I pondered on his advice, I told him to teach me the right thing to say.  This is the way he framed it .   "..............father grant them all their heart desires that are according to your plan and purpose for them............" In this way, he said ,the righteous God will filter the prayer and answer righteously .       I think it is a good advice. What do you think?