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
tabarani:8719 – ʿAlī b. ʿAbd al-ʿAzīz > Ḥajjāj b. al-Minhāl > Ḥammād b. Zayd > ʿĀṣim > Zir > Ibn Masʿūd

[Machine] And he said, "It is only the repentance of a prophet."  

الطبراني:٨٧١٩ – حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ الْعَزِيزِ ثنا حَجَّاجُ بْنُ الْمِنْهَالِ ثنا حَمَّادُ بْنُ زَيْدٍ عَنْ عَاصِمٍ عَنْ زِرٍّ عَنِ ابْنِ مَسْعُودٍ أَنَّهُ كَانَ §لَا يَسْجُدُ فِي ص

وَقَالَ «إِنَّمَا هِي تَوْبَةُ نَبِيٍّ»  

See similar narrations below:

Collected by Ṭabarānī
tabarani:8720 – [Chain 1] ʿAlī b. ʿAbd al-ʿAzīz > ʿĀrim Abū al-Nuʿmān [Chain 2] Muḥammad b. ʿAlī al-Ṣāʾigh > Saʿīd b. Manṣūr > Ḥammād b. Zayd > ʿĀṣim > Zir > ʿAbdullāh

[Machine] He used to not prostrate in Sajdah and say, "Indeed, it is only the repentance of a Prophet."  

الطبراني:٨٧٢٠ – حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ الْعَزِيزِ ثنا عَارِمٌ أَبُو النُّعْمَانِ ح وَحَدَّثَنَا مُحَمَّدُ بْنُ عَلِيٍّ الصَّائِغُ ثنا سَعِيدُ بْنُ مَنْصُورٍ قَالَا ثنا حَمَّادُ بْنُ زَيْدٍ عَنْ عَاصِمٍ عَنْ زِرٍّ عَنْ عَبْدِ اللهِ

أَنَّهُ كَانَ لَا يَسْجُدُ فِي ص وَيَقُولُ «إِنَّمَا هِي تَوْبَةُ نَبِيٍّ»