- Emulation - Taqleed 65
- Taharah 350
- Prayers 296
- Fasting 120
- Zakat 23
- Khums 82
- Pilgrimage 45
- Trade 121
- Enjoining the Good and Forbidding the Wrong 88
- Trust 1
- Leasing 3
- Lending & Borrowing 8
- Agency 1
- Will 3
- Gifts 4
- Religious Endowment (Waqf) 6
- Charity 4
- Marriage 300
- Divorce 67
- Vow, Covenant & Oath 16
- Kaffarah 6
- Usurpation 1
- Lost Property 5
- Hunting and Slaughtering 23
- Food & Drink 53
- Sea Animal 8
- Land Animals 11
- Birds 2
- Solid Food 6
- Liquids 11
- General Rulings 15
- Inheritance 14
- Compensation (Diyah and Dhaman) 10
- Diyah 7
- Ahlulbait 42
- Alcohol 15
- Banking 15
- Beliefs 89
- Blood Donation 2
- Clothing & Adornment 40
- Clothing 15
- Rings 6
- Cosmetics and Makeup 12
- Silk 2
- Gold 5
- Copyrights 2
- Converts 7
- Dance 4
- Eid 15
- Games 10
- Hijab 27
- General Issues 23
- History 2
- Holy Quran 29
- Human Cloning 2
- Imam Mahdi (Peace be upon him) 20
- Immigration 1
- Islamic Religion 31
- Internet 8
- Istikhara 10
- Islam & Christianity 3
- Jesus (Peace be upon him) 4
- Laws 2
- Man & Woman 32
- Masturbation 19
- Medical Issues 24
- Mosques 12
- Mourning Imam Hussein 34
- Mourning 7
- Muharram 10
- Tatbeer 6
- Ways of Mourning 11
- Narrations 11
- The Prophet - Peace be upon him- 9
- Organ Donation 2
- Quran Commentary 9
- Religious Chants 6
- Pets 7
- Religious Propagation 9
- Relationships 19
- Slavery 1
- Satan 2
- Smoking 8
- Supplication-Dua 22
- Tattoos 5
- Sport 2
- Tran Sexuality 4
- Vivisetion 1
- Wilayet Alfaqih 3
- Work 31
- Yoga 1
- Ziyara 15
Does Istihala occur when any component undergoes a chemical reaction?
We cannot present a general principle for this, since the change that results in the taharah of the changed substance occurs when the second state is different from the first one in the conventional understanding, in such a way that people – within conventional norms – consider the second form as a different matter.
An obvious example is the Istihala of wood into smoke or ash.