اللّهُـمَّ إِنّـي أَعـوذُبِكَ أَنْ أُشْـرِكَ بِكَ وَأَنا أَعْـلَمْ
وَأَسْتَـغْفِرُكَ لِما لا أَعْـلَم
Allahumma inni aaudhu bika an ushrika bika wa ana aalam,
wa astaghfiruka lima la aalam
O Allah, I seek refuge in You lest I associate anything with You knowingly,
and I seek Your forgiveness for what I know not
Reference:
Maqil bin Yasar (ra) said that he came to the Prophet (salahu alehi wasalam) with Abu Bakr (ra).
He said, “O Abu Bakr, polytheism enters your people more quietly (secretly) than the movement of ants.” Abu Bakr asked, “Is there a kind of polytheism besides associating anything with Allah?”
The Prophet (ﷺ) said,” By him who has my life in his power, polytheism is more concealed than the movement of ants.
Shall I not teach you something which if you say will eliminate minor or major (polytheism)?” He then said, “Say `O Allah! I seek refuge in you lest I associate anything with you while I know it, and I seek your forgiveness for what I do not know.’”
حَدَّثَنَا عَبَّاسٌ النَّرْسِيُّ، قَالَ: حَدَّثَنَا عَبْدُ الْوَاحِدِ، قَالَ: حَدَّثَنَا لَيْثٌ قَالَ: أَخْبَرَنِي رَجُلٌ مِنْ أَهْلِ الْبَصْرَةِ قَالَ: سَمِعْتُ مَعْقِلَ بْنَ يَسَارٍ يَقُولُ: انْطَلَقْتُ مَعَ أَبِي بَكْرٍ الصِّدِّيقِ رَضِيَ اللَّهُ عَنْهُ إِلَى النَّبِيِّ صلى الله عليه وسلم، فَقَالَ: يَا أَبَا بَكْرٍ، لَلشِّرْكُ فِيكُمْ أَخْفَى مِنْ دَبِيبِ النَّمْلِ، فَقَالَ أَبُو بَكْرٍ: وَهَلِ الشِّرْكُ إِلاَّ مَنْ جَعَلَ مَعَ اللهِ إِلَهًا آخَرَ؟ فَقَالَ النَّبِيُّ صلى الله عليه وسلم: وَالَّذِي نَفْسِي بِيَدِهِ، لَلشِّرْكُ أَخْفَى مِنْ دَبِيبِ النَّمْلِ، أَلاَ أَدُلُّكَ عَلَى شَيْءٍ إِذَا قُلْتَهُ ذَهَبَ عَنْكَ قَلِيلُهُ وَكَثِيرُهُ؟ قَالَ: قُلِ: اللَّهُمَّ إِنِّي أَعُوذُ بِكَ أَنْ أُشْرِكَ بِكَ وَأَنَا أَعْلَمُ، وَأَسْتَغْفِرُكَ لِمَا لا أَعْلَمُ.
Bukhari Al-Adab Al-Mufrad 716
Grade : Sahih (Al-Albani) :صـحـيـح
Also see : Ahmad 4/403. See also Al-Albani, Sahihul-Jami’ As-Saghir 3/233 and Sahihut-Targhib wat- Tarhib 1/19.