Mu'adh Ibn Jabal (RAA) narrated that the Messenger of Allah (ﷺ) said:
"A man does nothing to rescue himself from Allah's punishment better than remembering Allah." Related by Ibn Abi Shaibah and At-Tabarani with a good chain of narrators. (ID)
English reference (ID): Book 16, Hadith 1582 (ID)
Arabic reference (ID): Book 16, Hadith 1539 (ID)