When a religious learned man is asked, "Who is the most learned person." it is better for him to attribute or entrust absolute knowledge to Allah 'Azza wa Jall and to say. "Allah is the Most Learned (than anybody else)"

Sahih al-Bukhari · Book 3 · Hadith 122

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ، قَالَ حَدَّثَنَا سُفْيَانُ، قَالَ حَدَّثَنَا عَمْرٌو، قَالَ أَخْبَرَنِي سَعِيدُ بْنُ جُبَيْرٍ، قَالَ قُلْتُ لاِبْنِ عَبَّاسٍ إِنَّ نَوْفًا الْبِكَالِيَّ يَزْعُمُ أَنَّ مُوسَى لَيْسَ بِمُوسَى بَنِي إِسْرَائِيلَ، إِنَّمَا هُوَ مُوسَى آخَرُ‏.‏ فَقَالَ كَذَبَ عَدُوُّ اللَّهِ، حَدَّثَنَا أُبَىُّ بْنُ كَعْبٍ عَنِ النَّبِيّ…

Narrated Sa`id bin Jubair: I said to Ibn `Abbas, "Nauf-Al-Bakali claims that Moses (the companion of Khadir) was not the Moses of Bani Israel but he was another Moses." Ibn `Abbas remarked that the enemy of Allah (Nauf)…