Some users upload out-of-print Islamic texts to Archive.org claiming "fair use" for non-commercial education. While legally gray, Archive.org tends to host such files unless formally removed. Search there for the keyword, but note that the quality is often poor (blurry Jawi text).
You can search for "Risalah Amaliyah Qusairi Hamzah pdf free" on various online platforms, such as: risalah amaliyah qusairi hamzah pdf free
Historical context
: The book typically consists of 288 pages containing verses of the Quran, prayers for the deceased, and specific wirid for obligatory prayers. Some users upload out-of-print Islamic texts to Archive
: Websites like Google Books, ResearchGate, Academia.edu, or Internet Archive (archive.org) might have the document or similar works available for free or for a fee. You can try searching with the full title or parts of it. prayers for the deceased