It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that when this verse was revealed: (The Messenger has believed in what was revealed to him from his Lord, and so have the believers), the Messenger of Allah (peace and blessings be upon him) recited it. When he reached (We seek Your forgiveness, our Lord, and to You is the final return), Allah Almighty said: "I have forgiven you." Then when (he (peace and blessings be upon him)) recited (Our Lord, do not take us to task if we forget or err), Allah Almighty said: "I will not take you to task." Then when he recited (Our Lord, and do not place upon us a burden like that which You placed upon those before us), Allah, the Mighty and Majestic, said: "I will not place such a burden upon you." Then when he recited (Our Lord, and do not burden us with that which we have no ability to bear), Allah, the Blessed and Exalted, said: "I will not place such a burden upon you." Then he recited (And pardon us), and He said: "I have pardoned you." Then when he recited (And forgive us), He said: "I have forgiven you." Then when he recited (And have mercy upon us), He said: "I have had mercy upon you." Then when he recited (So give us victory over the disbelieving people), He said: "I have given you help against the disbelieving people."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Ata (may Allah have mercy on him) except Warqa'; Adam is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الهاء / 9308
Hadith Takhrij«أخرجه البزار فى «مسنده» برقم: 5104، والطحاوي فى «شرح مشكل الآثار» برقم: 1630»