It was narrated from Abdullah bin Busr that a Bedouin said to the Messenger of Allah(ﷺ) said: "The laws of Islam are burdensome for me. Tell me of something that I will be able to adhere to. He said: “Always keep your tongue moist with the remembrance of Allah, the Mighty and Sublime”"
SahihSahihSahihBook 33 · Hadith 137