Walaikum as-salam, Abu ‘Aaliyah [Rahimaullah] is a senior Tabiee who accepted Islam during the Khilafat of Abu Bakr Siddiq [Radi’Allahu anhu]. He heard from many big Sahabas, including Ibn Abbas and Ibn Masud [Radi’Allahu anhuma] among many others. He is also known as Imam of Tafsir [You can come across many tafsir scholars quoting him]. The above quote was mentioned by Imam Ahmed ibn hanbal [Rahimaullah] in Kitab al Zuhd

May Allah accept our prayers, recitations, invocations, supplications, intentions, provisions, charity, and other good deeds.