Musnad Abu Ya'la al-Mawsili 42:143

Ishaq narrated to us, Sufyan narrated to us, from al-Zuhri, from ‘Ata’ ibn Yazid, from Abu Sa’id: That the Prophet (ﷺ) forbade two types of sales and two types of clothing. As for the two sales, they are *al-mulamasah* (touching) and *al-munabadhah* (throwing). As for the two types of clothing, one is *ishtimal al-samma’* (wrapping oneself in a garment leaving no opening for the arms). And he forbade *al-ihtiba’* (sitting with the knees drawn up to the chest) in a single garment, with nothing between his private parts and the sky.