It is wrong to say that Du’a has no benefit. Anyone who has even a smattering of the Qur’an will not fail to recognize the significance and efficacy of Du’a.

There is no dearth of precedents for prayers heard as we read in the Qur’an. We are told time and again that Allah answered the prayers of His messengers and the believers who called upon Him.

Hence He orders His servants to call upon Him and assures them He will answer them: “Your Lord says, “call upon Me, and I will answer your prayers.”

And the Prophet (peace be upon him) said, “Du’a always helps, whether you are dealing with the decree that has come to pass or did not yet come pass.”

He also said nothing beats the decree like Du’a.

There is no contradiction between faith in the divine decree and the belief in the efficacy of Du’a. God decrees both.

Allah Almighty knows best.