Ask Allah sincerely from your heart if you wish to be killed in His cause.

This hadith speaks about the reward of martyrdom. It is narrated by Muadh bin Jabal that Prophet Muhammad said that whoever asks Allah to be killed in His cause sincerely from his heart, Allah shall give him the reward of martyrdom. This means that if someone is willing to sacrifice their life for a noble cause and ask Allah for it from their heart then they will receive a great reward from Him. This hadith teaches us about the importance of sacrificing our lives for a good purpose and how we should strive to do so with sincerity and dedication. It also shows us how much value Allah places on those who are willing to make such sacrifices for Him and His religion.