Supplication for Fear of Shirk

اللَّهُمَّ إِنِّي أَعُوذُ بِكَ أَنْ أُشْرِكَ بِكَ وَأَنَا أَعْلَمُ، وَأَسْتَغْفِرُكَ لِمَا لَا أَعْلَمُ

O Allah, I seek refuge in You from knowingly associating anything with You, and I seek Your forgiveness for that which I do not know.