It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: When any one of you makes supplication, he should not say, "O Allah! If You wish, forgive me," but rather he should pray with determination and certainty, for there is no one who can compel Allah. And surplus water should not be withheld so that grass may be prevented from growing.