Musnad Ahmad 792
It was narrated that ‘Ali (رضي الله عنه) said:
The Messenger of Allah (ﷺ) entered upon me when I was sleeping on the mattress. Al-Hasan or Al-Husain asked for a drink, so the Prophet (ﷺ) went to a young sheep and milked it, then Al-Hasan came to him and the Prophet (ﷺ) told him to wait. Fatimah said: O Messenger of Allah (ﷺ), it is as if he is the dearer of the two to you? He said: “No, but he asked for a drink first.” Then he said: `You and I and these two and this one who is sleeping will be in the same place on the Day of Resurrection.”
حَدَّثَنَا عَفَّانُ، حَدَّثَنَا مُعَاذُ بْنُ مُعَاذٍ، حَدَّثَنَا قَيْسُ بْنُ الرَّبِيعِ، عَنْ أَبِي الْمِقْدَامِ، عَنْ عَبْدِ الرَّحْمَنِ الْأَزْرَقِ، عَنْ عَلِيٍّ، رَضِيَ اللَّهُ عَنْهُ قَالَ دَخَلَ عَلَيَّ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَأَنَا نَائِمٌ عَلَى الْمَنَامَةِ فَاسْتَسْقَى الْحَسَنُ أَوْ الْحُسَيْنُ قَالَ فَقَامَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِلَى شَاةٍ لَنَا بِكْرٍ فَحَلَبَهَا فَدَرَّتْ فَجَاءَهُ الْحَسَنُ فَنَحَّاهُ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَقَالَتْ فَاطِمَةُ يَا رَسُولَ اللَّهِ كَأَنَّهُ أَحَبُّهُمَا إِلَيْكَ قَالَ لَا وَلَكِنَّهُ اسْتَسْقَى قَبْلَهُ ثُمَّ قَالَ إِنِّي وَإِيَّاكِ وَهَذَيْنِ وَهَذَا الرَّاقِدَ فِي مَكَانٍ وَاحِدٍ يَوْمَ الْقِيَامَةِ‏.‏