يأَيُّهَا الَّذِينَ ءَامَنُواْ لِمَ تَقُولُونَ مَا لاَ تَفْعَلُونَ
(O you who believe! Why do you say that which you do not do) Allah says here, `The dearest of you to Me, is he who fights in My cause.''' Some said that it was revealed about the gravity of fighting in battle, when one says that he fought and endured the battle, even though he did not do so. Qatadah and Ad-Dahhak said that this Ayah was sent down to admonish some people who used to say that they killed, fought, stabbed, and did such and such during battle, even though they did not do any of it. Sa`id bin Jubayr said about Allah's statement,