Musannaf Ibn Abi Shayba 3:1731

Waki’ narrated to us, he said: Abu Ubaydah al-Naji narrated to us, from al-Hasan, he said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Whoever leads a people in prayer while they are averse to him, his prayer does not pass his collarbone."