Explain the hadith about whistling is it haram or halal? Is the hadith weak or authentic?

Praise be to Allah, the Lord of the Worlds; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.

According to Ibn Mufleh in his book 'al-Adab al-Shariah', it is disliked to whistle.
Allah, The Exalted, dispraised polytheists for such an action in His saying {Their Salât (prayer) at the House (of Allâh, i.e. the Ka'bah at Makkah) was nothing but whistling and clapping of hands…….} [8:35]
In the same vein, Ibn 'Asakir reports from al-Hasan al-Basri from Yazid from Shari'a that it is reported in the Sunnah that whistling is disliked. But, this narration is weak.
However, The Qur'anic verse produces sufficient evidence in this concern.
Allah knows best.