Agreement of all heirs as a condition for the validity of dedicating anything from the deceased's inheritance

Q: My deceased father left behind a library which contains religious and historical books. Is it permissible (Part No. 16; Page No. 24) to make it a Waqf (endowment) for the sake of Allah on his behalf and send them to Islamic countries abroad? I appreciate your guidance. May Allah reward you!

A: It is permissible for you to make it as a Waqf for the knowledge seekers if the heirs agree and there are no minors among them. It will be Sadaqah Jariyah (ongoing charity) for your father. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.