FatwaJohorPurification (Taharah)
PERMOHONAN DAN PANDANGAN BERSERTA HUKUM BERKENAAN AIR MUTANAJIS YANG DITAPIS DAN DIRAWAT SECARA PROSES REVERSE OSMOSIS
What is the ruling on najis-contaminated water that has been filtered and treated through reverse osmosis (RO), and can it be used for worship and for eating and drinking?
Short answer
Water filtered by reverse osmosis at the Ayamas Bandar Tenggara factory is declared pure but not purifying.
A reference, not a fatwa. First sentence of the summary below — read the original fatwa and consult your state authority before acting.
- Authority
- Johor State Mufti Department
- Date
- Status
- Fatwa committee decision
- Series
- Fatwa Negeri Johor
- Topic
- Purification (Taharah)
No evidence of gazettement in the source — this is not a gazetted fatwa.
Summary
Water filtered by reverse osmosis at the Ayamas Bandar Tenggara factory is declared pure but not purifying. It may only be used for washing equipment and not for acts of worship or for eating and drinking. If the RO water is mixed in a tank of absolute (mutlak) water at a 50:50 ratio and the total exceeds two qullah, it becomes pure and purifying and may be used for worship and for eating and drinking. The factory is also expected to follow its SOPs and keep workers, equipment and machines in good working order to avoid negligence.
Written in our own words from the original fatwa — check the source before acting on it.
Jawatankuasa Fatwa Negeri Johor mendapati air yang ditapis secara Reverse Osmosis yang beroperasi di kilang Ayamas Bandar Tenggara adalah suci tetapi tidak menyucikan
Read the full fatwa on the Johor website (new tab)
How to cite
Cite the original fatwa and its authority. Rujuk Fatwa is only where you found it.
Johor State Mufti Department. “PERMOHONAN DAN PANDANGAN BERSERTA HUKUM BERKENAAN AIR MUTANAJIS YANG DITAPIS DAN DIRAWAT SECARA PROSES REVERSE OSMOSIS”, 6 July 2022. https://said.johor.gov.my/perkhidmatan/paparan_detail_fatwa.php?id=844. Found via Rujuk Fatwa: https://rujukfatwa.com/en/fatwa/ruling-on-reverse-osmosis-treated-najis-water/