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tabarani:10936 – [Chain 1] ʿAlī b. Saʿīd al-Rāzī > Ayyūb b. Muḥammad al-Ṣāliḥī [Chain 2] al-Ḥusayn b. Isḥāq al-Tustarī > Abū al-Rabīʿ al-Zahrānī > ʿUmar b. Rabāḥ > Ibn Ṭāwus from his father > Ibn ʿAbbās ؓ ā

[Machine] The Prophet ﷺ used to raise his hands in every rak'ah, and the righteous said to do so after every takbirah.  

الطبراني:١٠٩٣٦ – حَدَّثَنَا عَلِيُّ بْنُ سَعِيدٍ الرَّازِيُّ ثنا أَيُّوبُ بْنُ مُحَمَّدٍ الصَّالِحِيُّ ح وَحَدَّثَنَا الْحُسَيْنُ بْنُ إِسْحَاقَ التُّسْتَرِيُّ ثنا أَبُو الرَّبِيعِ الزَّهْرَانِيُّ قَالَا ثنا عُمَرُ بْنُ رَبَاحٍ عَنِ ابْنِ طَاوُسٍ عَنْ أَبِيهِ عَنِ ابْنِ عَبَّاسٍ ؓ قَالَ

كَانَ رَسُولُ اللهِ ﷺ «يَرْفَعُ يَدَيْهِ فِي كُلِّ رَكْعَةٍ» وَقَالَ الصَّالِحِيُّ عِنْدَ كُلِّ تَكْبِيرَةٍ  

See similar narrations below:

Collected by Ibn Mājah
ibnmajah:865 – Ayyūb b. Muḥammad al-Hāshimī > ʿUmar b. Riyāḥ > ʿAbdullāh b. Ṭāwus from his father > Ibn ʿAbbās

It was narrated from Ibn ‘Abbas that the Messenger of Allah ﷺ used to raise his hands at every Takbir (saying Allahu Akbar).  

ابن ماجة:٨٦٥ – حَدَّثَنَا أَيُّوبُ بْنُ مُحَمَّدٍ الْهَاشِمِيُّ حَدَّثَنَا عُمَرُ بْنُ رِيَاحٍ عَنْ عَبْدِ اللَّهِ بْنِ طَاوُسٍ عَنْ أَبِيهِ عَنِ ابْنِ عَبَّاسٍ

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَرْفَعُ يَدَيْهِ عِنْدَ كُلِّ تَكْبِيرَةٍ