The Prophet ﷺ said, "Shall I guide you to one of the treasures of Paradise?"I said, "Yes, Messenger of Allah."He said, "La hawla wa la quwwata illa billah."
عن النبي ﷺ قال: ألا أدلك على كنز من كنوز الجنة؟ قلت: بلى يا رسول الله، قال: لا حول ولا قوة إلا بالله.
Ibn Majah (3825), Nasai in Amal al-Yawm wal-Layla (43), and Ahmad (21346) all narrated it through Sulayman Amash, from Mujahid, from Abdul-Rahman bin Abu Layla, from Abu Dharr, who mentioned it. Its chain of transmission is sahih.