Descriptions of the Mahdī عليه السلام

Saʿd b. ʿAbd Allāh, from Muḥammad b. ʿUbayd and Muḥammad b. al-Ḥusayn b. Abī’l-Khaṭṭāb, from Muḥammad b. Abī ʿUmayr, from Jamīl b. Ṣāliḥ, from Abī ʿAbd Allāh عليه السلام, who said: “The Qāʾim will go forth without an allegiance to anyone (binding) on his neck.”