Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
muslim:2477 – Zuhayr b. Ḥarb And ʾAbū Bakr b. al-Naḍr > Hāshim b. al-Qāsim > Warqāʾ b. ʿUmar al-Yashkurī > ʿUbaydullāh b. Abū Yazīd

Who placed it here? And in a version of Zuhair they (the Companions) said, and in the version of Abu Bakr (the words are): I said: It is Ibn 'Abbas (who has done that), whereupon he (the Holy Prophet) said: May Allah grant him deep understanding of religion.  

مسلم:٢٤٧٧ – حَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ وَأَبُو بَكْرِ بْنُ النَّضْرِ قَالاَ حَدَّثَنَا هَاشِمُ بْنُ الْقَاسِمِ حَدَّثَنَا وَرْقَاءُ بْنُ عُمَرَ الْيَشْكُرِيُّ قَالَ سَمِعْتُ عُبَيْدَ اللَّهِ بْنَ أَبِي يَزِيدَ يُحَدِّثُ عَنِ ابْنِ عَبَّاسٍ أَنَّوسلم أَتَى الْخَلاَءَ فَوَضَعْتُ لَهُ وَضُوءًا فَلَمَّا خَرَجَ قَالَ مَنْ وَضَعَ هَذَا فِي رِوَايَةِ زُهَيْرٍ قَالُوا وَفِي رِوَايَةِ أَبِي بَكْرٍ قُلْتُ ابْنُ عَبَّاسٍ قَالَ

اللَّهُمَّ فَقِّهْهُ  

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Collected by Suyūṭī
suyuti:10021a –
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السيوطي:١٠٠٢١a –

"اللهم فَقِّهْهُ في الدِينِ" .  

قاله لابن عباس، البخاري من حديث ابن عباس وهو عند الإمام أحمد بن حنبل، وابن حبان، والحاكم بزيادة وعلمه التأويل