Respected Sheikh I have a great problem and I need your advice. My older brother left islam and does not believe in it anymore. From what I have heard from the arguments from my parents, he left because he thinks its a violent religion. His claims are based upon ignorance. His friends are, from what I have seen and heard, druggies and alcohol consumers etc. He does not live with us because he moved out. My question is: how can i make da’wah to him to realize his error. I know that I can prove to him through rational thought, proofs, and evidences derived from the Quran and Sunnah that islam is indeed the religion of God. However I do not know where to start. In relation to this question, I need advice and some du’as to supplicate to Allah that will make me a better speaker. I think that I need to make da’wah to my non believer friends as well but I consider myself a very weak public speaker. How can I improve my da’wah skills?
May Allah reward you