Hadith 31-252

وَبِإِسْنادِهِ قالَ النَّبِي‏ صَلَّى اللهُ عَلَيْهِ وَآلِهِ: الحَسَنُ وَالحُسَيْنُ خَيْرُ أَهْلِ الأَرْض بَعْدي وَبَعْد أَبيهُما، وَاُمُّهُما أَفْضَلُ نِساء أَهْل الأَرْضِ.

According to the same documentation the Prophet (S) said, “Al-Hassan and Al-Husayn (a.s.) are the best people on the Earth after me and their father. Their mother is the best of the women on the Earth.”