Surah Al-Imran, ayah 168

3:168

ٱلَّذِينَ قَالُواْ لِإِخۡوَٰنِهِمۡ وَقَعَدُواْ لَوۡ أَطَاعُونَا مَا قُتِلُواْۗ قُلۡ فَٱدۡرَءُواْ عَنۡ أَنفُسِكُمُ ٱلۡمَوۡتَ إِن كُنتُمۡ صَٰدِقِينَ ١٦٨

Alladhīna qālū li ikhwānihim waqa'adū law atā'ūnā mā qutilū qul fadra'ū 'an anfusikumul-mawta in kuntum sādiqīn

Those who said about their brothers while sitting [at home], "If they had obeyed us, they would not have been killed." Say, "Then prevent death from yourselves, if you should be truthful."