Kitaab al-Usool by al-Shaashi and commentaries thereon, and what is meant by the word al-hukmiyaat
Question

                In the book Usool al-Fiqh by al-Shaashi, which is about al-mushtarak wa’l-mu’awwal, there is the word al-hukmiyaat. What does it mean? I hope you can tell me if there are any commentaries on this book.
Praise be to Allah.
    Firstly: 

    The book known as Usool al-Shaashi is one of the well known 
    Hanafi books, whose author is Abu ‘Ali al-Shaashi: Ahmad ibn Muhammad ibn 
    Ishaaq Nizaam al-Deen, the Hanafi faqeeh (d. 344 AH). 

    He was one of the students of Abu’l-Hasan al-Karkhi, who 
    praised him and said: No one came to us who was more learned than Abu ‘Ali. 
    Al-Shaashi lived in Baghdad and studied there.  

    The book of al-Shaashi was published in Kanpoor in India, by 
    the Majeedi Press, in 1388 AH, and by Dar al-Kitaab al-‘Arabi in Beirut in 
    1402 AH with its commentary, ‘Umdat al-Hawaashi Sharh Usool al-Shaashi 
    by Muhammad Fayd al-Hasan al-Kankoohi. It was published by Dar al-Kutub 
    al-‘Ilmiyyah in Beirut in 1423 AH, edited by ‘Abd-Allaah Muhammad 
    al-Khaleeli. The book was also published by Dar al-Gharb al-Islami in 1422 
    AH, edited by Muhammad Akram al-Nadawi. 

    Commentaries on this book include the following: 

    1.A commentary by al-Mawla 
    Muhammad ibn al-Hasan al-Khawarazmi (d. 781 AH).

    2.Husool al-Hawaashi ‘ala 
    Usool al-Shaashi by Muhammad Hasan, who was 
    known by the kunyah of Abu’l-Hasan ibn Muhammad al-Sanbahli al-Hindi. 
    Published in Nambshi Nawlakshoor 1302 AH.

    3.‘Umdat al-Hawaashi 
    by al-Mawla Muhammad Fayd al-Hasan al-Kankoohi, which was published with 
    Usool al-Shaashi.

    4.Tas-heel Usool al-Shaashi 
    by Shaykh Muhammad Anwar al-Badakhshaani. This was published by Idaarat 
    al-Qur’aan wa’l-‘Uloom al-Islamiyyah in Karachi, first edition 1412 AH.  

    See the Introduction to Usool al-Shaashi by Shaykh 
    Khaleel al-Mees. 

    Secondly: 

    As for the meaning of the word hukmiyaat that is mentioned in 
    the book referred to and in other Hanafi books: 

    What it means is contracts, marriage, divorce and financial 
    transactions, which are things that begin with words. They are intangible 
    things in return for tangible things, in their view, and tangible things are 
    things that involve physical actions, such as beating and slaughtering.  

    There follow some comments from their books which explain 
    what is meant by this word: 

    1-

    ‘Uthmaan ibn ‘Ali al-Zayla’i al-Hanafi (may Allaah have mercy 
    on him) said: 

    If one who is swearing an oath with regard to divorce and 
    marriage and other such hukmiyaat says ‘I intend not to speak of it or 
    initiate it,’ this may be accepted from him on the basis of honesty not on 
    the basis of what has happened, unlike if he were to say concerning 
    slaughtering a sheep or beating a slave: ‘I intend not to do it myself’; in 
    that case this may be accepted from him on the basis of honesty and on the 
    basis of what has happened. 

    Tabyeen al-Haqaa’iq Sharh Kanz al-Daqaa’iq 
    (3/148). 

    2-

    He also (may Allaah have mercy on him) said: 

    Moreover, these things require prevention with regard to 
    words and not deeds, because prevention has to do with hukmiyaat and not 
    with tangible matters. To execute one’s words comes under the heading of 
    hukmiyaat. Don’t you see that it may be accepted or rejected, but actions 
    are something tangible that cannot be prevented once they have taken place. 
    So prevention is not applicable to them. 

     Tabyeen al-Haqaa’iq Sharh Kanz al-Daqaa’iq (5/191). 

    3-

    Muhammad ibn Farmooza Mulla Khusr al-Hanafi (may Allaah have 
    mercy on him) said: 

    … the third has to do with tangible actions mentioned in 
    al-Bahr, even if he intends to carry it out by himself only. He will be 
    believed if he said that on the basis of honesty and on the basis of what 
    happened with regard to tangible matters such as beating and slaughtering. 
    This may be accepted from him only on the basis of honesty with regard to 
    hukmiyaat, such as marriage and divorce, as it says in al-Fath. 

    Durar al-Hukkaam Sharh Gharar al-Ahkaam 
    (2/57). 

    The book al-Bahr from which he quoted is one of the 
    Hanafi books, whose full title is al-Bahr al-Raa’iq Sharh Kanz 
    al-Daqaa’iq(4/378): 

    This explains the phrase used by al-Shaashi (may Allaah have 
    mercy on him), which is that he was referring to financial transactions 
    among the hukmiyaat, when he said: 

    The example of al-hukmiyaat when we say if there is nothing 
    specified with regard to currency, then it should be taken as what is mostly 
    used as the currency of the land they are in, because if there was some 
    confusion regarding the currency, then the transaction is invalid. 

    Here he gave an example of hukmiyaat on business 
    transactions, and that is clear, as quoted before. Therefore what is meant 
    by this word is verbal, intangible contracts. 

    And Allaah knows best.