Sunan Ibn Majah 897
سنن ابن ماجه#897SahihIt was narrated from Hudhaifah that the Prophet (ﷺ) used to say between the two prostrations:“Rabbighfir li, Rabbighfir li (O Lord forgive me, O Lord forgive me).”
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 5:95