Wheeeew Scary Allaah protect us all ameanNumber One
"Shirk in this Ummah is more hidden and inconspicuous than a small black ant on a black stone in the deep darkness of the night."
Saheeh related in Saheeh at-Targheeb wat Tarheeb #33
The expiation for this is saying:
"O Allaah, I surely seek refuge in you from associating partners with you knowingly, and I seek your forgiveness for committing a sin that I don't know about."
Related by Ahmed & Saheeh related in Saheeh at-Targheeb wat Tarheeb