صحیح ابن حبان
Ibn Hibban
كتاب الصلاة
Book of Prayer
باب صفة الصلاة - ذكر الخبر المدحض قول من زعم أن دعاء المرء في صلاته بما ليس في كتاب الله جل وعلا يفسد عليه صلاته
Chapter on the Description of Prayer - Report refuting those who claim that supplicating in prayer with things not in the Quran invalidates the prayer
1 hadith
Hadith 1976
Sayyiduna Abdullah bin Amr narrates this about Sayyiduna Abu Bakr Siddiq. He presented himself before the Prophet Muhammad (peace be upon him) and said: "Teach me a supplication which I may recite during prayer." The Prophet Muhammad (peace be upon him) said: "Recite this: 'O Allah! I have wronged myself greatly, and none forgives sins except You, so grant me forgiveness from Your presence and have mercy on me. Surely, You are the Most Forgiving, Most Merciful.'"