Yonus bin Yazid bin Abi al-Nijad يونس بن يزيد بن أبي النجاد · The Book on Clothing

That Ibn 'Umar said: "When the Messenger of Allah (ﷺ) would wear an 'Imamah would hang between his shoulders." Nafi' said: "Ibn 'Umar would hang his 'Imamah between his shoulders." 'Ubaidullah said: "And I saw Al-Qasim and Salim doing that." This Hadith is Hasan Gharib. And there is something on this topic from 'Ali. And this Hadith of 'Ali about this is not correct due to its chain.