مَنْ مَاتَ وَلَمْ يَغْزُ، وَلَمْ يُحَدِّثْ بِهِ نَفْسَهُ، مَاتَ عَلَى شُعْبَةٍ مِنْ نِفَاقٍ
Translation: Whoever dies without having taken part in (lawful) fighting in Allah’s cause or even having considered it in the heart dies with a trait of hypocrisy.
Source: مسلم
In وَلَمْ يَغْزُ, لَمْ negates the action with reference to the past: “did not take part.” وَلَمْ يُحَدِّثْ بِهِ نَفْسَهُ means that the person had not even considered it inwardly. شُعْبَةٍ مِنْ نِفَاقٍ means “a trait or branch of hypocrisy,” not a definitive judgment of complete doctrinal hypocrisy concerning every individual.
The report warns against total indifference to religious responsibility. The conditions and legal rules of fighting are a separate, regulated subject; the narration does not authorize self-directed violence or judgments on another person’s faith.