Sura al-Baqara 2:44

أَتَأْمُرُونَ ٱلنَّاسَ بِٱلْبِرِّ وَتَنسَوْنَ أَنفُسَكُمْ وَأَنتُمْ تَتْلُونَ ٱلْكِتَٰبَ أَفَلَا تَعْقِلُونَ

ataʾmurūna l-nāsa bil-birri wa-tansawna anfusakum wa-antum tatlūna l-kitāba a-fa-lā taʿqilūna

Do ye enjoin right conduct on the people, and forget (To practise it) yourselves, and yet ye study the Scripture? Will ye not understand?

Sura al-Anʿām 6:41

بَلْ إِيَّاهُ تَدْعُونَ فَيَكْشِفُ مَا تَدْعُونَ إِلَيْهِ إِن شَآءَ وَتَنسَوْنَ مَا تُشْرِكُونَ

bal iyyāhu tadʿūna fa-yakshifu mā tadʿūna ilayhi in shāʾa wa-tansawna mā tushrikūna

"Nay,- On Him would ye call, and if it be His will, He would remove (the distress) which occasioned your call upon Him, and ye would forget (the false gods) which ye join with Him!"