Yahya related to me from Malik from Abu'z Zinad from al-Araj
from Abu Hurayra that the Messenger of Allah, may Allah bless him and
grant him peace, said, ''When you are making dua do not say; 'O Allah,
forgive me if You wish. O Allah, forgive me if you wish.' You should
be firm in your asking, for there is no compelling Him."
Muwatta Malik Book 15, Hadith 30