مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2385
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn 'Abbas (رضي الله عنه): The Messenger of Allah (ﷺ) placed his hands on my shoulder, then he said: "O Allah, give him deep understanding of the faith and teach him understanding of Qur’an.”
Musnad Ahmad 2397lts isnad is qawi, al-Bukhari (143) and Muslim (2477)]