Is it true that the Prophet ﷺ kissed the glans of Al-Hussein and spread his legs, and sucked the tongues of some children?

The narration about the Prophet, peace and blessings be upon him, kissing the penis of Al-Husayn is not authentic. It has been narrated through four channels, all of which are weak due to the unreliability of their narrators, such as Qabus bin Abi Dhibyan and Muhammad bin Abd al-Rahman bin Abi Layla, or due to a break in the chain of narration (inqita'), or due to being fabricated in its text (mawdu').

What is authentic in this regard is the Prophet, peace and blessings be upon him, kissing the stomach of Al-Hasan, which was narrated by Ahmad with a good (hasan) chain of narration.

As for the narration about the Prophet, peace and blessings be upon him, sucking the tongue of Al-Hasan, it is an authentic (sahih) narration, narrated by Ahmad with an authentic (sahih) chain of narration.