Q: I would like to ask Your Eminence if it is permissible to spend some of the Zakah (obligatory charity) on the Du`ah (callers to Islam) wherever they are in the world. I was motivated to ask about this because I have noticed a lack of the spirit of brotherhood and social solidarity among Muslims in many countries in Europe and America. This is something that might cause the Du`ah, who devote their lives, time, and effort to serve Da`wah (calling to Islam), (Part No. 10; Page No. 49) to starve in these countries.As Your Eminence knows, giving a portion of the Zakah to them may save them from the disaster of poverty, increase their dedication to serve Da`wah, and enable them to use the money in softening the people's hearts and offering help to the weak and needy in these societies.In this concern, I remember something I read from Shaykh-ul-Islam Ibn Taymiyyah. He stated that it is permissible to buy books on Islamic knowledge with Zakah money, and give them to scholars and seekers of knowledge. This is because the knowledge they gain will not be limited to them, but will extend to include those who study under their supervision and seek guidance through them.I hope to receive an answer on this subject that will shed light on the way for me and all Muslims. I hope you will reply in a written letter.May Allah help you to guide Muslims to understand whatever issues may face them as regards the affairs of their life and religion! As-salamu `alaykum warahmatullah wabarakatuh (May Allah's Peace, Mercy, and Blessings be upon you!)