Complex sentence: Islam emphasises the importance of fighting "nafs" because Muhammad said after returning from a war, "We now return from the small struggle (Jihad Asghar) to the big struggle (Jihad Akbar)".
Split into simpler sentences: Islam emphasises the importance of fighting "nafs". One such tradition holds that Muhammad said after returning from a war, "We now return from the small struggle (Jihad Asghar) to the big struggle (Jihad Akbar)".