Jami` at-Tirmidhi, Volume 5, Book 44, Hadith 2999 (DarusSalam) ⓘ
Narrated 'Amir bin Sa'd bin Abi Waqqas: from his father who said: "When this Ayah was revealed: 'Come, let us call our sons and your sons, our women and your women... (3:61)' the Messenger of Allah called 'Ali, Fatimah, Hasan and Husain and said: 'O Allah! This is my family.'"
حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا حَاتِمُ بْنُ إِسْمَاعِيلَ، عَنْ بُكَيْرِ بْنِ مِسْمَارٍ، هُوَ مَدَنِيٌّ ثِقَةٌ عَنْ عَامِرِ بْنِ سَعْدِ بْنِ أَبِي وَقَّاصٍ، عَنْ أَبِيهِ، قَالَ لَمَّا أَنْزَلَ اللَّهُ هَذِهِ الآيَةَ : ( نَدْعُ أَبْنَاءَنَا وَأَبْنَاءَكُمْ ) دَعَا رَسُولُ اللَّهِ صلى الله عليه وسلم عَلِيًّا وَفَاطِمَةَ وَحَسَنًا وَحُسَيْنًا فَقَالَ " اللَّهُمَّ هَؤُلاَءِ أَهْلِي " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ صَحِيحٌ .
also referenced under: Hadith 2999 (Reference) & Book 47, Hadith 3269 (In-Book)