Sunan Abi Dawud, Book 3, Hadith 739 (USC-MSA) ⓘ

Narrated Abdullah ibn Abbas: Nadr ibn Kathir as-Sa'di said: Abdullah ibn Tawus prayed at my side in the mosque of al-Khayf. When he made the first prostration, he raised his head after it and raised his hands opposite to his face. This came as something strange for me. I, therefore, said it to Wuhayb ibn Khalid. Then Wuhayb ibn Khalid said to him: You are doing a thing that I did not see anyone do. Ibn Tawus then replied: I saw my father doing it, and my father said: I saw Ibn Abbas doing it. I do not know but he said: The Prophet used to do it.

حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، وَمُحَمَّدُ بْنُ أَبَانَ، - الْمَعْنَى - قَالاَ حَدَّثَنَا النَّضْرُ بْنُ كَثِيرٍ، - يَعْنِي السَّعْدِيَّ - قَالَ صَلَّى إِلَى جَنْبِي عَبْدُ اللَّهِ بْنُ طَاوُسٍ فِي مَسْجِدِ الْخَيْفِ فَكَانَ إِذَا سَجَدَ السَّجْدَةَ الأُولَى فَرَفَعَ رَأْسَهُ مِنْهَا رَفَعَ يَدَيْهِ تِلْقَاءَ وَجْهِهِ فَأَنْكَرْتُ ذَلِكَ فَقُلْتُ لِوُهَيْبِ بْنِ خَالِدٍ فَقَالَ لَهُ وُهَيْبُ بْنُ خَالِدٍ تَصْنَعُ شَيْئًا لَمْ أَرَ أَحَدًا يَصْنَعُهُ فَقَالَ ابْنُ طَاوُسٍ رَأَيْتُ أَبِي يَصْنَعُهُ وَقَالَ أَبِي رَأَيْتُ ابْنَ عَبَّاسٍ يَصْنَعُهُ وَلاَ أَعْلَمُ إِلاَّ أَنَّهُ قَالَ كَانَ النَّبِيُّ صلى الله عليه وسلم يَصْنَعُهُ ‏.‏