On it being dislike for a man to say in supplication, "O Allah, forgive me if You will." He should be firm in asking

Riyad as-Salihin (The Meadows of the Righteous)

by Imam Nawawi

332. Chapter: On it being dislike for a man to say in supplication, "O Allah, forgive me if You will." He should be firm in asking

1743. Abu Hurayra reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "None of you should say, 'O Allah, forgive me if You will. O Allah, have mercy on me if You will.' He should be firm in his asking. No one can force Him." [Agreed upon]

In a variant of Muslim, 'He should be firm and should have great desire. Nothing is too great for Allah Almighty to give him."

1744. Anas reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "When one of you makes supplication, he should be firm in his asking and not say, 'O Allah, if You wish give to me.' He cannot be compelled." [Agreed upon]