The Kitáb-i-Aqdas - The Most Holy Book
Index term: Ablutions
k10.
We have commanded you to pray and fast from the beginning of maturity; this is ordained by God, your Lord and the Lord of your forefathers. He hath exempted from this those who are weak from illness or age, as a bounty from His Presence, and He is the Forgiving, the Generous. God hath granted you leave to prostrate yourselves on any surface that is clean, for We have removed in this regard the limitation that had been laid down in the Book; God, indeed, hath knowledge of that whereof ye know naught. Let him that findeth no water for ablution repeat five times the words "In the Name of God, the Most Pure, the Most Pure", and then proceed to his devotions. Such is the command of the Lord of all worlds. In regions where the days and nights grow long, let times of prayer be gauged by clocks and other instruments that mark the passage of the hours. He, verily, is the Expounder, the Wise.
k13.
God hath exempted women who are in their courses from obligatory prayer and fasting. Let them, instead, after performance of their ablutions, give praise unto God, repeating ninety-five times between the noon of one day and the next "Glorified be God, the Lord of Splendour and Beauty". Thus hath it been decreed in the Book, if ye be of them that comprehend.
k18.
It hath been ordained that every believer in God, the Lord of Judgement, shall, each day, having washed his hands and then his face, seat himself and, turning unto God, repeat "Alláh-u-Abhá" ninety-five times. Such was the decree of the Maker of the Heavens when, with majesty and power, He established Himself upon the thrones of His Names. Perform ye, likewise, ablutions for the Obligatory Prayer; this is the command of God, the Incomparable, the Unrestrained.
n16.
Let him that findeth no water for ablution repeat five times the words
Ablutions are to be performed by the believer in preparation for the offering of obligatory prayer. They consist of washing the hands and face. If water is unavailable, the repetition five times of the specifically revealed verse is prescribed. See note 34 for a general discussion of ablutions.
Antecedents in earlier Dispensations for the provision of substitute procedures to be followed when no water is available are found in the Qur'án and in the Arabic Bayán.
n20.
God hath exempted women who are in their courses from obligatory prayer and fasting.
Exemption from obligatory prayer and fasting is granted to women who are menstruating; they should, instead, perform their ablutions (see note 34) and repeat 95 times a day between one noon and the next, the verse "Glorified be God, the Lord of Splendour and Beauty". This provision has its antecedent in the Arabic Bayán, where a similar dispensation was granted.
In some earlier religious Dispensations, women in their courses were considered ritually unclean and were forbidden to observe the duties of prayer and fasting. The concept of ritual uncleanness has been abolished by Bahá'u'lláh (see note 106).
The Universal House of Justice has clarified that the provisions in the Kitáb-i-Aqdas granting exemptions from certain duties and responsibilities are, as the word indicates, exemptions and not prohibitions. Any believer is, therefore, free to avail himself or herself of an applicable exemption if he or she so wishes. However, the House of Justice counsels that, in deciding whether to do so or not, the believer should use wisdom and realize that Bahá'u'lláh has granted these exemptions for good reason.
The prescribed exemption from obligatory prayer, originally related to the Obligatory Prayer consisting of nine rak'ahs, is now applicable to the three Obligatory Prayers which superseded it.
n33.
It hath been ordained that every believer in God . . . shall, each day . . . repeat
"Alláh-u-Abhá" is an Arabic phrase meaning "God the All-Glorious". It is a form of the Greatest Name of God (see note 137). In Islám there is a tradition that among the many names of God, one was the greatest; however, the identity of this Greatest Name was hidden. Bahá'u'lláh has confirmed that the Greatest Name is "Bahá".
The various derivatives of the word "Bahá" are also regarded as the Greatest Name. Shoghi Effendi's secretary writing on his behalf explains that

The Greatest Name is the Name of Bahá'u'lláh. "Yá Bahá'u'l-Abhá" is an invocation meaning: "O Thou Glory of Glories!". "Alláh-u-Abhá" is a greeting which means: "God the All-Glorious". Both refer to Bahá'u'lláh. By Greatest Name is meant that Bahá'u'lláh has appeared in God's Greatest Name, in other words, that He is the supreme Manifestation of God.

The greeting "Alláh-u-Abhá" was adopted during the period of Bahá'u'lláh's exile in Adrianople.
The repetition of "Alláh-u-Abhá" ninety-five times is to be preceded by the performance of ablutions (see note 34).
n34.
Perform ye . . . ablutions for the Obligatory Prayer
Ablutions are specifically associated with certain prayers. They must precede the offering of the three Obligatory Prayers, the daily recitation of "Alláh-u-Abhá" ninety-five times, and the recital of the verse prescribed as an alternative to obligatory prayer and fasting for women in their courses (see note 20).
The prescribed ablutions consist of washing the hands and the face in preparation for prayer. In the case of the medium Obligatory Prayer, this is accompanied by the recitation of certain verses (see Some Texts Revealed by Bahá'u'lláh Supplementary to the Kitáb-i-Aqdas).
That ablutions have a significance beyond washing may be seen from the fact that even should one have bathed oneself immediately before reciting the Obligatory Prayer, it would still be necessary to perform ablutions (Q&A 18).
When no water is available for ablutions, a prescribed verse is to be repeated five times (see note 16), and this provision is extended to those for whom the use of water would be physically harmful (Q&A 51).
The detailed provisions of the law concerning ablutions are set out in the Synopsis and Codification, section IV.A.10.a.-g., as well as in Questions and Answers numbers 51, 62, 66, 77 and 86.
q18.
 
Question: With reference to the ablutions: if, for example, a person hath just bathed his entire body, must he still perform his ablutions?
Answer: The commandment regarding ablutions must, in any case, be observed.
q51.
 
Question: With reference to ablutions, it hath been revealed, "Let him that findeth no water for ablution repeat five times the words 'In the Name of God, the Most Pure, the Most Pure'": is it permissible to recite this verse in times of bitter cold, or if the hands or face be wounded?
Answer: Warm water may be used in times of bitter cold. If there are wounds on the face or hands, or there be other reasons such as aches and pains for which the use of water would be harmful, one may recite the appointed verse in place of the ablution.
q62.
 
Question: If, for another purpose, one hath performed ablutions, and the time of obligatory prayer arriveth, are these ablutions sufficient or must they be renewed?
Answer: These same ablutions are sufficient, and there is no need for them to be renewed.
q66.
 
Question: Are ablutions for the morning prayer still valid for the noonday prayer? And similarly, are ablutions carried out at noon still valid in the evening?
Answer: Ablutions are connected with the Obligatory Prayer for which they are performed, and must be renewed for each prayer.
q77.
 
Question: Do ablutions performed for the Obligatory Prayer suffice for the ninety-five repetitions of the Greatest Name?
Answer: It is unnecessary to renew the ablutions.
q86.
 
Question: At noon, which is the time for two of the Obligatory Prayers -- the short midday prayer, and the prayer to be offered in the morning, noon, and evening -- is it necessary in this case to perform two ablutions or would one suffice?
Answer: The renewal of ablutions is unnecessary.