Attend constantly to prayers and to the middle prayer and stand up truly obedient to Allah. (The Cow 2.238)

Only Allah is your Vali and His Apostle and those who believe, those who keep up prayers and pay the poor-rate while they bow. (The Dinner Table 5.55)

To Him is due the true prayer; and those whom they pray to besides Allah give them no answer, but (they are) like one who stretches forth his two hands towards water that it may reach his mouth, but it will not reach it; and the prayer of the unbelie

So make obeisance to Allah and serve (Him).

Allah is the Creator of every thing and He has charge over every thing.

It came at last.

"'Dr. Graham, tell me,' she asked tremulously, 'do you believe that prayers - wicked unreasonable prayers - are granted?'

He helped himself to another slice of bread-and-butter before answering. 'Well-' he said slowly, 'it seems hard to believe that every fool who has a voice to pray with and a brain to conceive idiotic requests should be permitted to interfere with the economy of the universe. As a rule, if people were long-sighted enough to foresee the result of their petitions, I fancy very few of us would venture to interfere.' ("The Story of A Ghost")