The Ruling on Swearing by Allah?

Question:
The questioner asks: Is it permissible in supplication to say, "O Allah, I swear upon You to do such and such"? And if it is not permissible, what about the hadith of the Messenger of Allah (peace and blessings be upon him): "If one were to swear by Allah, He would fulfill it"?

Answer:
Swearing by Allah is of two types: a prohibited type and a permissible type. Swearing by Allah that He will not do good, such as saying, "By Allah, Allah will not forgive so-and-so," is not permissible. This is because it restricts Allah (Mighty and Majestic), constitutes bad manners with Allah (Mighty and Majestic), and is a bad opinion of Allah. Therefore, this is not permissible.
As for the second type, which is swearing by Allah that He will do good, this is good and is a good opinion of Allah (Mighty and Majestic), as in the hadith: There is nothing wrong with this. As for the first type, it is prohibited because it is bad manners with Allah. You are trying to prevent Allah from preventing good from Allah (Mighty and Majestic) and preventing Allah from sending good to His servants. This is not permissible. For this reason, when a man from the Children of Israel said, "By Allah, Allah will not forgive so-and-so," Allah (Mighty and Majestic) said, "Who is the one who swears upon Me, meaning he swears upon Me that I will not forgive so-and-so? I have already forgiven him and I have nullified your deed." He nullified the deed of this speaker because he was arrogant toward Allah and had bad manners with Allah (Mighty and Majestic), and he wanted to prevent good from Allah. And Allah forgave this sinner, because , and no one can prevent Allah (Mighty and Majestic) from forgiving His servants.