Musnad Ahmad 30:1814

Muhammad ibn Idris al-Shafi‘i narrated to us, he said: Malik informed us, from Muhammad ibn Yahya ibn Habban and Abu al-Zinad, from al-A‘raj, from Abu Hurayrah, "That the Messenger of Allah, may Allah bless him and grant him peace, forbade *al-mulamasah* (touching) and *al-munabadhah* (throwing)."