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.
tabarani:19721ʿUbayd b. Ghannām > Abū Bakr b. Abū Shaybah > Abū Usāmah > ʿUbaydullāh b. ʿUmar > Nāfiʿ > Ibn ʿUmar > Ḥafṣah

[Machine] "The Prophet ﷺ used to prostrate two quick prostrations when dawn broke."  

الطبراني:١٩٧٢١حَدَّثَنَا عُبَيْدُ بْنُ غَنَّامٍ ثنا أَبُو بَكْرِ بْنِ أَبِي شَيْبَةَ ثنا أَبُو أُسَامَةَ عَنْ عُبَيْدِ اللهِ بْنِ عُمَرَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ أَخْبَرَتْنِي حَفْصَةُ

أَنَّ النَّبِيَّ ﷺ كَانَ «يَسْجُدُ سَجْدَتَيْنِ خَفِيفَتَيْنِ إِذَا طَلَعَ الْفَجْرُ»