The Messenger of Allah (ﷺ) said: "'Ali is from me and I am from 'Ali. And none should represent me except myself or 'Ali."
Jami` at-Tirmidhi Book 49 Hadith 116
Narrated Hubshi bin Junadah

that the Messenger of Allah (ﷺ) said: "'Ali is from me and I am from 'Ali. And none should represent me except myself or 'Ali."

حَدَّثَنَا إِسْمَاعِيلُ بْنُ مُوسَى، قَالَ حَدَّثَنَا شَرِيكٌ، عَنْ أَبِي إِسْحَاقَ، عَنْ حُبْشِيِّ بْنِ جُنَادَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏ "‏ عَلِيٌّ مِنِّي وَأَنَا مِنْ عَلِيٍّ وَلاَ يُؤَدِّي عَنِّي إِلاَّ أَنَا أَوْ عَلِيٌّ ‏"‏ ‏.‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ صَحِيحٌ ‏.
 
Rasoolulah (ﷺ): "'Ali is from me, and I am from him, and he is the Wali (وَلِيُّ) of every believer after me"
Jami` at-Tirmidhi Book 49 Hadith 108
Narrated 'Imran bin Husain:

that the Messenger of Allah (ﷺ) dispatched an army and he put 'Ali bin Abi Talib in charge of it. He left on the expedition and he entered upon a female slave. So four of the Companions of the Messenger of Allah (ﷺ) scolded him, and they made a pact saying: "[If] we meet the Messenger of Allah (ﷺ) we will inform him of what 'Ali did." When the Muslims returned from the journey, they would begin with the Messenger of Allah (ﷺ) and give him Salam, then they would go to their homes. So when the expedition arrived, they gave Salam to the Prophet (ﷺ), and one of the four stood saying: "O Messenger of Allah! Do you see that 'Ali bin Abi Talib did such and such." The Messenger of Allah (ﷺ) turned away from him. Then the second one stood and said as he said, and he turned away from him. Then the third stood before him, and said as he said, and he turned away from him. Then the fourth stood and said as they had said. The Messenger of Allah (ﷺ) faced him, and the anger was visible on his face, he said: "What do you want from 'Ali?! What do you want from 'Ali?! What do you want from 'Ali?! Indeed 'Ali is from me, and I am from him, and he is the wali of every believer after me."

حَدَّثَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا جَعْفَرُ بْنُ سُلَيْمَانَ الضُّبَعِيُّ، عَنْ يَزِيدَ الرِّشْكِ، عَنْ مُطَرِّفِ بْنِ عَبْدِ اللَّهِ، عَنْ عِمْرَانَ بْنِ حُصَيْنٍ، قَالَ بَعَثَ رَسُولُ اللَّهِ صلى الله عليه وسلم جَيْشًا وَاسْتَعْمَلَ عَلَيْهِمْ عَلِيَّ بْنَ أَبِي طَالِبٍ فَمَضَى فِي السَّرِيَّةِ فَأَصَابَ جَارِيَةً فَأَنْكَرُوا عَلَيْهِ وَتَعَاقَدَ أَرْبَعَةٌ مِنْ أَصْحَابِ رَسُولِ اللَّهِ صلى الله عليه وسلم فَقَالُوا إِذَا لَقِينَا رَسُولَ اللَّهِ صلى الله عليه وسلم أَخْبَرْنَاهُ بِمَا صَنَعَ عَلِيٌّ وَكَانَ الْمُسْلِمُونَ إِذَا رَجَعُوا مِنَ السَّفَرِ بَدَءُوا بِرَسُولِ اللَّهِ صلى الله عليه وسلم فَسَلَّمُوا عَلَيْهِ ثُمَّ انْصَرَفُوا إِلَى رِحَالِهِمْ فَلَمَّا قَدِمَتِ السَّرِيَّةُ سَلَّمُوا عَلَى النَّبِيِّ صلى الله عليه وسلم فَقَامَ أَحَدُ الأَرْبَعَةِ فَقَالَ يَا رَسُولَ اللَّهِ أَلَمْ تَرَ إِلَى عَلِيِّ بْنِ أَبِي طَالِبٍ صَنَعَ كَذَا وَكَذَا ‏.‏ فَأَعْرَضَ عَنْهُ رَسُولُ اللَّهِ صلى الله عليه وسلم ثُمَّ قَامَ الثَّانِي فَقَالَ مِثْلَ مَقَالَتِهِ فَأَعْرَضَ عَنْهُ ثُمَّ قَامَ إِلَيْهِ الثَّالِثُ فَقَالَ مِثْلَ مَقَالَتِهِ فَأَعْرَضَ عَنْهُ ثُمَّ قَامَ الرَّابِعُ فَقَالَ مِثْلَ مَا قَالُوا فَأَقْبَلَ إِلَيْهِ رَسُولُ اللَّهِ صلى الله عليه وسلم وَالْغَضَبُ يُعْرَفُ فِي وَجْهِهِ فَقَالَ ‏ "‏ مَا تُرِيدُونَ مِنْ عَلِيٍّ مَا تُرِيدُونَ مِنْ عَلِيٍّ مَا تُرِيدُونَ مِنْ عَلِيٍّ إِنَّ عَلِيًّا مِنِّي وَأَنَا مِنْهُ وَهُوَ وَلِيُّ كُلِّ مُؤْمِنٍ مِنْ بَعْدِي ‏"‏ ‏.‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ لاَ نَعْرِفُهُ إِلاَّ مِنْ هَذَا الْوَجْهِ مِنْ حَدِيثِ جَعْفَرِ بْنِ سُلَيْمَانَ ‏.

Note: "And he is your wali after me" clearly restricts wilayat to him and only him. Support, friendship, love, and the like are clearly not confined to one single person. As such it would then exclude the wives and other companions of the Prophet (ﷺ).