(1) Whatever impurity is excreted either from the front or back makes it imperative to cleanse the affected part i.e. to perform ISTINJA.
(2) If the impurity has not spread on the sides of the affected part and water is either not available at all or is not sufficient for ISTINJA, then it is permissible to wipe the affected part clean with stones or earth until all the impurity has been removed and the body
has become free from it. However, being repugnant to be the basic idea of cleanliness and purity this method should be resorted to only in extreme circumstances. [Tanwir-Shami]
(3) No specific manner has been laid down for cleaning with mub. The only thing to be kept in mind is that the impurity does not spread around and that the body is rendered free from it. [Futuhe-Hidia]
(4) After cleaning with mud it is Masnun to clean with water. [Tirmizi]
(5) However, if the impurity covers a space larger than depression of a palm then it is obligatory to wash with water. Unless the impurity has been washed clean with water, Salaah will not be in order. If however, the impurity has not spread to that extent and one cleans it with only, then it is permissible to perform Salaah; nevertheless, this will be inconsistent with the Sunnah. [Sharahul Tanwir]
(6) Before entering the privy one should say BISMILLAAH and the masnun supplication.
(7) While entering the privy, one should put in the left foot first.
(8) One should not go to the privy bare – headed. [Zad -ul- Ma’ad]
(9) Before entering the privy, one should put off the ring on which the name of ALLAH or his Prophet (Sallallahu Alaihi Wa Sallam) is engraved. [Nasai]
(10) Entering the privy with a ta’wiz encased in waxcloth or even ordinary cloth is permissible.
(11) If one has to sneeze while in the privy, he should say (AI-hamdulillaah) only in mind and not with tongue.
(12) As long as one is in the privy, one should not talk or speak. [Mishkat]
(13) While coming out of the privy one should put the right feet out and recite the prescribed prayer.
(14) Left hand should be used for cleaning. If the left hand is missing, the right hand may perforce be used.
(15) After ISTINJA one should rub the left hand well on the ground or with soil and then wash it.
(16) Sitting for natural evacuations at a place wherethat the miswak be used with the right hand: doing so is mustahabs (a praiseworthy act). Some of the commentators on the traditions have said that in using miswak one should begin with the right side.
Hadrat Aishah (Radi Allaahu Ta’ala Anha) narrated that the Prophet’s miswak used to be kept near him at night, for when he got up to pray during the night, he cleaned his mouth with the tooth-stick before performing the ablution. [Bukhari, Muslim, lbn Sa’d]
Hadrat Aishah narrated that it was customary with the Prophet (Sallallahu Alaihi Wa Sallam) that when he got up after sleep by day or by night, he would use the tooth-stick before performing ablution. [Marif-ul- Hadis, Musnad Ahmad, Sunan Abu Dawud]
The last act of the Prophet (Sallallahu Alaihi Wa Sallam) on his death-bed was to use a miswak. Hadrat Aishah (Radi Allaahu Ta’ala An ha) narrated “The Salaah before which the tooth – stick is used is seventy times more excellent than that before which it is not used.” [Baihaqi in Shu’ab al-Iman]