The Prophet (peace and blessings be upon him) said:
"(The sin of) mistakes, forgetfulness and whatever they are compelled to do has been pardoned for my Ummah."
Hadith Referenceصحیح الجامع الصغیر / حرف الراء / 3515
Hadith Gradingالألبانی:صحيح
Hadith Takhrijبلفظ: وضع [ ... ] طب" عن ثوبان. الإرواء ٨٢.