Ruling on hiring a woman to bear the daff for women

If the matter is as described in the question and the
shar’i conditions of using the daff only in a wedding party will be
adhered to, then there is nothing wrong with bringing a female singer and
paying her for her work. 

Shaykh Ibn ‘Uthaymeen (may Allaah have mercy on him) said: 

As for giving money to women who play the daff, there is
nothing wrong with it, because that is a payment for permissible work. But
giving money to women who play other kinds of drums is not permissible,
because that is payment for haraam work. The Prophet (peace and
blessings of Allaah be upon him) said: “When Allaah forbids a thing, he
forbids its price.” Narrated by Ibn Hibbaan, 4938; classed as saheeh by
al-Albaani in Ghaayat al-Maraam, 318. 

End quote. Liqa’ al-Baab il-Maftooh, 1/580. See
al-Liqa’ al-Shahri, 235 

We must point out here
that beating the daff at wedding parties and paying someone to do that is
permissible in principle, but it may be accompanied by haraam or makrooh
things which make it disallowed. 

Shaykh Muhammad ibn Ibraaheem (may Allaah have mercy on him)
said:   

Beating the daff at weddings is permissible according to
sharee’ah so as to announce the wedding, but if other evil consequences
happen as a result of that, then it is not allowed. End quote. 

Majmoo’ al-Fataawa, 10/218 

Examples of that include dancing to this daff. 

Shaykh Ibn ‘Uthaymeen
(may Allaah have mercy on him) said: 

Dancing is makrooh,
especially if there is the fear of fitnah (temptation) as a result, because
sometimes the dancer may be young and beautiful, and her dancing may provoke
desire even in women. End quote. 

Liqa’ al-Baab al-Maftooh, 1/580 

See also question no.
5000 and 9290 

Another example is extravagance in the fee paid. 

The fee paid to the woman who beats the daff should be
reasonable, not extravagant. Allaah says, forbidding extravagance
(interpretation of the meaning): 

“and waste not by
extravagance. Verily, He likes not Al‑Musrifoon (those who waste by
extravagance)”

[al-An’aam 6:141] 

This extravagance may be a cause of blessing being taken away
from this marriage. It is narrated that the Prophet (peace and
blessings of Allaah be upon him) said: “The woman who brings the greatest
blessing is the one whose wedding arrangements are the most moderate.”
Narrated by Ahmad, 24595; classed as saheeh by al-Haakim, and al-Dhahabi
agreed with him. Al-‘Iraaqi said in Takhreej Ahaadeeth al-Ihya’: its
isnaad is jayyid. 

But it was classed as da’eef by al-Haythami in Majma’
al-Zawaa’id, 7332; and by al-Albaani in al-Silsilah al-Da’eefah,
1117. 

And Allaah knows best.