Allah, the Most Holy, the Most High, did not teach anything to His Messenger but that He commanded him to teach such knowledge to Amir al-Mu’minin 
and he was his partner in Knowledge
3 Aḥadīth
Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from ibn ’Udhayna from ‘Abdallah ibn Sulayman from Humran ibn A‘yan from abu ‘Abdallah who has said the following. “Once Jibril came to the Messenger of Allah and brought him two pieces of pomegranates. The Messenger of Allah ate one of them and broke the other one into two pieces. He then ate one half and fed the other half to Ali . The Messenger of Allah said, “O my brother, do you know what those pieces of pomegranates were?” He said, “No, I do not know.” He then said, “The first one was prophet-hood. There is no share in it for you. The other one is knowledge in which you’re my partner.” I then said, “May Allah keep you well, how was that?” He would be his partner in it?” He said, “Allah did not teach any knowledge but that He commanded him to teach it to Ali .”
عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنِ ابْنِ أُذَيْنَةَ عَنْ عَبْدِ الله بْنِ سُلَيْمَانَ عَنْ حُمْرَانَ بْنِ أَعْيَنَ عَنْ أَبِي عَبْدِ الله قَالَ إِنَّ جَبْرَئِيلَ أَتَى رَسُولَ الله ﷺ بِرُمَّانَتَيْنِ فَأَكَلَ رَسُولُ الله ﷺ إِحْدَاهُمَا وَكَسَرَ الاخْرَى بِنِصْفَيْنِ فَأَكَلَ نِصْفاً وَأَطْعَمَ عَلِيّاً نِصْفاً ثُمَّ قَالَ رَسُولُ الله ﷺ يَا أَخِي هَلْ تَدْرِي مَا هَاتَانِ الرُّمَّانَتَانِ قَالَ لا قَالَ أَمَّا الاولَى فَالنُّبُوَّةُ لَيْسَ لَكَ فِيهَا نَصِيبٌ وَأَمَّا الاخْرَى فَالْعِلْمُ أَنْتَ شَرِيكِي فِيهِ فَقُلْتُ أَصْلَحَكَ الله كَيْفَ كَانَ يَكُونُ شَرِيكَهُ فِيهِ قَالَ لَمْ يُعَلِّمِ الله مُحَمَّداً ﷺ عِلْماً إِلا وَأَمَرَهُ أَنْ يُعَلِّمَهُ عَلِيّاً (a.s )
Ali has narrated from his father from Ibn Abi ‘Umayr from ibn ‘Udhaynah from Zurarah from abu Ja‘far who has said the following. “Once Jibril brought from Paradise two pieces of pomegranate to the Messenger of Allah and brought him two pieces of pomegranates. The Messenger of Allah ate one of them and broke the other one into two pieces. He then ate one half and gave the other half to Ali who also ate it . The Messenger of Allah said, “The first one that I ate was prophet-hood. There is no share in it for you. The other one is knowledge in which you are my partner.”
عَلِيٌّ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنِ ابْنِ أُذَيْنَةَ عَنْ زُرَارَةَ عَنْ ابي جعفر قَالَ نَزَلَ جَبْرَئِيلُ عَلَى رَسُولِ الله ﷺ بِرُمَّانَتَيْنِ مِنَ الْجَنَّةِ فَأَعْطَاهُ إِيَّاهُمَا فَأَكَلَ وَاحِدَةً وَكَسَرَ الاخْرَى بِنِصْفَيْنِ فَأَعْطَى عَلِيّاً نِصْفَهَا فَأَكَلَهَا فَقَالَ يَا عَلِيُّ أَمَّا الرُّمَّانَةُ الاولَى الَّتِي أَكَلْتُهَا فَالنُّبُوَّةُ لَيْسَ لَكَ فِيهَا شَيْءٌ وَأَمَّا الاخْرَى فَهُوَ الْعِلْمُ فَأَنْتَ شَرِيكِي فِيهِ.
Muhammad ibn Yahya has narrated from Muhammad ibn al-Hassan from Muhammad ibn ‘Abd al-Hamid from Mansur ibn Yunus from ibn ’Udhaynah from Muhammad ibn Muslim who has said that he heard abu Ja‘far say the following. “Once Jibril descended to Muhammad 
(and) brought two pieces of pomegranate from Paradise. Ali meet him and asked, “What (kind of ) pomegranate are those in your hands?” He replied, “As to this one, it is the Prophet-hood in which there is no share for you. As to this one, it is knowledge. Then the Messenger of Allah broke it into two halves. He then gave one half and the Messenger of Allah kept the other half and then said, “You are my partner in it and I am your partner in it.” The Imam then said, “I swear by Allah that there was nothing of all the knowledge that was taught to the Messenger of Allah but that he taught them to Ali and thereafter knowledge was transferred to us. He then placed his hand over his chest.”
مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ الْحَسَنِ عَنْ مُحَمَّدِ بْنِ عَبْدِ الْحَمِيدِ عَنْ مَنْصُورِ بْنِ يُونُسَ عَنِ ابْنِ أُذَيْنَةَ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ قَالَ سَمِعْتُ أَبَا جَعْفَرٍ يَقُولُ نَزَلَ جَبْرَئِيلُ عَلَى مُحَمَّدٍ ﷺ بِرُمَّانَتَيْنِ مِنَ الْجَنَّةِ فَلَقِيَهُ علي فَقَالَ مَا هَاتَانِ الرُّمَّانَتَانِ اللَّتَانِ فِي يَدِكَ فَقَالَ أَمَّا هَذِهِ فَالنُّبُوَّةُ لَيْسَ لَكَ فِيهَا نَصِيبٌ وَأَمَّا هَذِهِ فَالْعِلْمُ ثُمَّ فَلَقَهَا رَسُولُ الله ﷺ بِنِصْفَيْنِ فَأَعْطَاهُ نِصْفَهَا وَأَخَذَ رَسُولُ الله ﷺ نِصْفَهَا ثُمَّ قَالَ أَنْتَ شَرِيكِي فِيهِ وَأَنَا شَرِيكُكَ فِيهِ قَالَ فَلَمْ يَعْلَمْ وَالله رَسُولُ الله ﷺ حَرْفاً مِمَّا عَلَّمَهُ الله عَزَّ وَجَلَّ إِلا وَقَدْ عَلَّمَهُ عَلِيّاً ثُمَّ انْتَهَى الْعِلْمُ إِلَيْنَا ثُمَّ وَضَعَ يَدَهُ عَلَى صَدْرِهِ.