Tank Water Mixed with Dirty Water

Shaykh Abdul-Rahim Reasat clarifies the rulings on the purity of water, what makes it impure, and whether it can be used for purification.


Assalam alaykum wa rahmat Allah wa barakatuh.

I suffer from OCD in religious matters for the past year. I am getting psychotherapy for it. I used to repeat prayers and wudu due to misgivings but I am getting better now, Alhamdullillah, and the advice on your Website has been very helpful. May Allah reward you. I am currently doing the Steps 1 Hanafi Fiqh course. I reflect a lot on my past prayers.

Once when I was in Pakistan visiting family, there was problem with the tank water being mixed with dirty water. When this incident happened, I had only converted to Islam a few years ago so I asked my husband, should I do wudu with it? He replied, it should be OK. The water smelled filthy but I don’t remember taste or color.

This was years ago. I prayed at least one salah with that wudu. I don’t remember if I did any more, changed clothes (as there might have been filthy water on my clothes while doing wudu), had shower or what. Should I repeat my prayer, how many?

Jazak Allah for your help.


Wa alaykum assalam wa rahmat Allah wa barakatuh.

I pray you are well.

Alhamdulillah, it is good to know that your symptoms are improving. You can expect a lot of good from Allah, because His Messenger, Allah bless him and give him peace, said, “Whoever Allah wants good for, He tests him time and time again.” (Bukhari)

As for your prayer, you do not need to repeat it. You can assume every prayer you have prayed to be valid – unless there is certainty of it being invalidated. Ignore any doubts.

Here we see the value of the sunna and voluntary prayers. If there is any deficiency in the obligatory prayers Allah will say to the angels, “Look, does my servant have any voluntary [works]?” If so, He will say, “Complete My servant’s obligatory [works through them].” (Ahmad) This shows that the defects of our efforts will be compensated for by the generosity of Allah Most High.

The Default Ruling of Water

The default ruling of water is purity. This is a legal ruling, and not a customary one. Sometimes, you may find water which is not hygienic or clean – such as if a wasp was found dead in a water tank, or muddy water – but this does not affect its purity.

So, if the default ruling of water is purity, and there is nothing to establish with certainty that the water was impure, then we stick with the default ruling: purity, and the validity of all prayers performed with wudu made with that water.

May Allah grant you the best of both worlds.


Checked and approved by Shaykh Faraz Rabbani.

Homeopathy and Animal Products

Shaykh Jamir Meah clarifies the rulings on the permissibility of using homeopathic medicines that contain animal products.


Assalam alaykum wa rahmat Allah wa barakatuh.

I would greatly appreciate it if someone can answer the question in regards to homeopathy and the animal products that can be found in them, i.e. Lac Caninum (dog’s milk) or Tarantula (spider). As Muslims can we take these homeopathic remedies even though it’s made from dog’s milk diluted many times and the form has changed. I would especially appreciate it if a practicing Muslim homeopath can answer it.


Wa alaykum assalam wa rahmat Allah wa barakatuh.

I pray you’re well insha Allah.

Medicines which contain impermissible ingredients, such as impure substances, are permissible to take on the following three conditions:

    1. 1. That there is no permissible alternative.


    1. 2. That one has been informed that the remedy will or will likely treat the malady effectively by a qualified physician, or that one knows this through their own previous experience. This should be an upright Muslim physician, but in the absence of one, a non-Muslim physician who is sensitive to the needs and requirements of Muslim patients would be valid.


    3. One ingests the medicine only to the extent it is needed (which is fine in homeopathic medicines as one should only take the minimum dose).

Istihala (Transformation)

In the Shafi‘i school, homeopathic remedies which contain impure substances (and where the water it was diluted in was less than 216 liters) will still be considered impure as transformation is limited to only a few instances in our school.

In the Hanafi school, the highly diluted homeopathic remedy would result in transformation of the impure substance (which is scarcely traceable in remedies lower than 12c potency and virtually untraceable in any potency higher than this) and therefore renders the remedy permissible from this perspective, and in this difference of opinion is a mercy from Allah. (Tuhfat al-Muhtaj, Mughni al-Muhtaj)

Please also refer to the following answers which discuss alcohol in homeopathic remedies and impure substances in medicine: A Comprehensive Guide to the Fiqh of Homeopathic Remedies and Is Medical Marijuana Allowed in Islam?

Warmest salams,


Checked and approved by Shaykh Faraz Rabbani.

Is Medical Marijuana Allowed in Islam?

Answered by Shaykh Faraz A. Khan

Question: Is marijuana allowed in Islam? What about medical marijuana?


Answer: Assalamu alaikum wa rahmatullah,

I pray this finds you in the best of health and states.

Marijuana is unlawful in Islam due to its mind-altering effects, the foremost of which is its distracting one from the remembrance of Allah and the prayer. Like alcohol, it weakens one’s senses and one’s ability to think, and it is also addicitve. [Nahlawi, Hadhr wal-Ibaha]

For a detailed response, please see: Is Marijuana Haram?

As for medical use of marijuana, this would return to the criteria of using an unlawful substance for medical treatment (tadawi bil-haram), which is permissible under the following conditions:

(a) A qualified physician that is a pious Muslim informs the patient that the medicine can effectively treat the illness, based on high likelihood or near certainty. If no such Muslim is in one’s locality, then a qualified physician that appreciates the importance of the Sacred Law for Muslims is sufficient.

(b) No alternative medicine that is lawful is available or sufficiently effective;

(c) It is used only in accordance with the need, and no more.

[Ibn Abidin, Radd al-Muhtar]

It is worth mentioning that one may want to consider some form of alternative medicine, such as homeopathic medicine, Chinese medicine, or the like.

And Allah knows best.

Checked & Approved by Faraz Rabbani