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
nasai:1771 – Muḥammad b. ʿAbdullāh b. ʿAbd al-Ḥakam > Isḥāq b. al-Furāt > Yaḥyá b. Ayyūb > Yaḥyá b. Saʿīd > Nāfiʿ > Ibn ʿUmar > Ḥafṣah

"When he was called to Subh prayer, the Messenger of Allah ﷺ would do two prostrations before Subh prayer."  

النسائي:١٧٧١ – أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ عَبْدِ الْحَكَمِ قَالَ أَنْبَأَنَا إِسْحَاقُ بْنُ الْفُرَاتِ عَنْ يَحْيَى بْنِ أَيُّوبَ قَالَ حَدَّثَنِي يَحْيَى بْنُ سَعِيدٍ قَالَ أَنْبَأَنَا نَافِعٌ عَنِ ابْنِ عُمَرَ عَنْ حَفْصَةَ أَنَّهَا أَخْبَرَتْهُ

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ إِذَا نُودِيَ لِصَلاَةِ الصُّبْحِ سَجَدَ سَجْدَتَيْنِ قَبْلَ صَلاَةِ الصُّبْحِ  

See similar narrations below:

Collected by Ṭabarānī
tabarani:19775 – Muṣʿab b. Ibrāhīm b. Ḥamzah from my father > Ibn Abū Ḥāzim > Mūsá b. ʿUqbah > Nāfiʿ > Ibn ʿUmar > Ḥafṣah

[Machine] The Prophet ﷺ used to prostrate two prostrations when the call for Fajr prayer was made, before performing the Fajr prayer, and he would make them short.  

الطبراني:١٩٧٧٥ – حَدَّثَنَا مُصْعَبُ بْنُ إِبْرَاهِيمَ بْنِ حَمْزَةَ ثنا أَبِي ثنا ابْنُ أَبِي حَازِمٍ عَنْ مُوسَى بْنِ عُقْبَةَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ عَنْ حَفْصَةَ

أَنَّ النَّبِيَّ ﷺ كَانَ «إِذَا نُودِيَ بِصَلَاةِ الصُّبْحِ سَجَدَ سَجْدَتَيْنِ قَبْلَ صَلَاةِ الصُّبْحِ يُخَفِّفُهُمَا»