The ruling on saying "if Allah wills" when making supplication

Question:
What is the ruling on saying, for example, "if Allah wills, He will grant so-and-so a child" when making supplication? Does this fall under the prohibition of the Prophet (peace and blessings be upon him) regarding saying, "O Allah, forgive me if You will," when making supplication, and his command to say "Ameen"? Or is saying "Ameen" specific to the one who hears the supplication?

Answer:
Yes, the Prophet (peace and blessings be upon him) prohibited saying, "O Allah, forgive me if You will," or "O Allah, have mercy on me if You will." One should be decisive in asking, because there is no one who can compel Allah (Glorified and Exalted is He). Therefore, one should not say "if Allah wills" when making supplication for oneself, for one's brother, or for any of the Muslims. One should make supplication with certainty and without hesitation, because "if Allah wills" is an exception; it contains an exception and not certainty. So, one should leave out this phrase.