Invocation for fear of Shirk

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

Allāhumma innī aʿūdhu bika an ushrika bika wa anā aʿlamu, wa astaghfiruka limā lā aʿlam

O Allah, I take refuge in You lest I should commit shirk with You knowingly and I seek Your forgiveness for what I do unknowingly.