It is reported that Bishr b. Al-Hârith said:

I heard Al-Fudayl b. ‘Ayyâd say, “It has reached me that Allâh has barred repentance from every adherent of bid’ah (religious innovation), and the worst of the people of bid’ah are those who hate the Companions of Allâh’s Messenger – Allâh’s peace and blessings be upon him.” He then turned to me and said, “Make the firmest of your deeds with Allâh your love for the Companions of His Prophet, for [then], were you to come to the standing of judgment (on the Day of Resurrection) with the likes of the Earth in sins, Allâh would forgive you; but if you come [on that Day] with even the smallest amount of hatred for them, no [good] deed will benefit you.”

Abû Bakr Al-Daynûrî, Al-Mujâlasah wa Jawâhir Al-‘Ilm 5: 412.