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:11233al-Ḥasan b. ʿAlī al-Fasawī > Saʿīd b. Sulaymān > ʿAbdullāh b. al-Muʾammal > Ibn Abū Mulaykah > Ibn ʿAbbās

[Machine] "The Messenger of Allah, ﷺ , prayed in the Kaaba. Bilal and Al-Fadl were at the door. Bilal said, 'He prostrated,' and Al-Fadl said, 'He performed a Rak'ah (unit of prayer)."  

الطبراني:١١٢٣٣حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ الْفَسَوِيُّ ثنا سَعِيدُ بْنُ سُلَيْمَانَ ثنا عَبْدُ اللهِ بْنُ الْمُؤَمَّلِ قَالَ سَمِعْتُ ابْنَ أَبِي مُلَيْكَةَ يُحَدِّثُ عَنِ ابْنِ عَبَّاسٍ ؓ قَالَ

«صَلَّى رَسُولُ اللهِ ﷺ فِي الْكَعْبَةِ» وَكَانَ بِلَالٌ وَالْفَضْلُ عَلَى الْبَابِ فَقَالَ بِلَالٌ «سَجَدَ» وَقَالَ الْفَضْلُ «رَكَعَ»