Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
ibnmajah:897 – [Chain 1] ʿAlī b. Muḥammad > Ḥafṣ b. Ghiyāth > al-ʿAlāʾ b. al-Musayyab > ʿAmr b. Murrah > Ṭalḥah b. Yazīd > Ḥudhayfah [Chain 2] ʿAlī b. Muḥammad > Ḥafṣ b. Ghiyāth > al-Aʿmash > Saʿd b. ʿUbaydah > al-Mustawrid b. al-Aḥnaf > Ṣilah b. Zufar > Ḥudhayfah

“Rabbighfir li, Rabbighfir li (O Lord forgive me, O Lord forgive me).”  

ابن ماجة:٨٩٧ – حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ حَدَّثَنَا حَفْصُ بْنُ غِيَاثٍ حَدَّثَنَا الْعَلاَءُ بْنُ الْمُسَيَّبِ عَنْ عَمْرِو بْنِ مُرَّةَ عَنْ طَلْحَةَ بْنِ يَزِيدَ عَنْ حُذَيْفَةَ ح وَحَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ حَدَّثَنَا حَفْصُ بْنُ غِيَاثٍ عَنِ الأَعْمَشِ عَنْ سَعْدِ بْنِ عُبَيْدَةَ عَنِ الْمُسْتَوْرِدِ بْنِ الأَحْنَفِ عَنْ صِلَةَ بْنِ زُفَرَ عَنْ حُذَيْفَةَ

أَنَّ النَّبِيَّ ﷺ كَانَ يَقُولُ بَيْنَ السَّجْدَتَيْنِ رَبِّ اغْفِرْ لِي رَبِّ اغْفِرْ لِي  

See similar narrations below:

Collected by Ṭabarānī
tabarani:12363 – Zakariyyā b. Yaḥyá al-Sājī > Salamah b. Shabīb > Zayd b. al-Ḥubāb > Kāmil Abū al-ʿAlāʾ > Ḥabīb b. Abū Thābit > Saʿīd b. Jubayr > Ibn ʿAbbās

[Machine] The Prophet ﷺ used to say between the two prostrations, "O Lord, forgive me, have mercy on me, guide me, grant me well-being, and provide for me."  

الطبراني:١٢٣٦٣ – حَدَّثَنَا زَكَرِيَّا بْنُ يَحْيَى السَّاجِيُّ ثنا سَلَمَةُ بْنُ شَبِيبٍ ثنا زَيْدُ بْنُ الْحُبَابِ ثنا كَامِلٌ أَبُو الْعَلَاءِ عَنْ حَبِيبِ بْنِ أَبِي ثَابِتٍ عَنْ سَعِيدِ بْنِ جُبَيْرٍ عَنِ ابْنِ عَبَّاسٍ

أَنَّ النَّبِيَّ ﷺ «كَانَ يَقُولُ بَيْنَ السَّجْدَتَيْنِ رَبِّ اغْفِرْ لِي وَارْحَمْنِي وَاهْدِنِي وَعَافِنِي وَارْزُقْنِي»