الَّذينَ قالوا لِإِخوانِهِم وَقَعَدوا لَو أَطاعونا ما قُتِلوا ۗ قُل فَادرَءوا عَن أَنفُسِكُمُ المَوتَ إِن كُنتُم صادِقينَ

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."