What is the ruling on reading and listening to the poetry of poets about whom there is disagreement, such as Al-Hallaj, and on listening to poetry accompanied by music?

It is permissible to listen to good poetry from any reciter, even if he is a disbeliever or an innovator, for the consideration is given to the statement, not to the one who says it. The Prophet, peace and blessings be upon him, listened to the poetry of some disbelievers and approved of it, such as the poetry of Umayyah ibn Abi al-Salt, because it affirmed monotheism and resurrection. However, listening to poetry accompanied by music is not permissible, due to the prohibition of listening to musical instruments.