´It was narrated from Abu Dharr that he asked the prophet of Allah (ﷺ) which deed was best. He said:` "Belief in Allah and Jihad in the cause of Allah, the Mighty and Sublime."
Hadith ReferenceSunan an-Nasa'i / The Book of Jihad / Hadith: 3131
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه