The Ruling on 'Islamic Nashîds':
If these nashîds have 'Islamic' meanings whilst not having in them any musical instruments such as duffs, other drums, or the like, then there is no problem in this.
However, it is necessary to explain an important prerequisite for their permissibility, and that is that they should be free of anything contradicting the shari'ah such as excessiveness and the like.
Then another condition is that it should not become a habit because that diverts listeners [of the nashîds] from the recitation of the Qur`ân, which is encouraged in the prophetic, purified, sunnah. Likewise, it diverts them from seeking beneficial knowledge and calling to Allâh subhanahu.
As for the use of duffs in nashids, then this is permissible for women when amongst themselves, and not for men, and on 'îd and on weddings only.
[Shaykh Al-Albânî]