ENOfficial
It was narrated from Anas that : The Messenger of Allah (ﷺ) said: "By the One in Whose hand is the soul of Muhammad, none of you has believed until he loves for his brother what he loves for himself of goodness."
Source: sunnah.com
Other translations
Arabic
أَخْبَرَنَا مُوسَى بْنُ عَبْدِ الرَّحْمَنِ قَالَ حَدَّثَنَا أَبُو أُسَامَةَ عَنْ حُسَيْنٍ وَهُوَ الْمُعَلِّمُ عَنْ قَتَادَةَ عَنْ أَنَسٍ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ وَالَّذِي نَفْسُ مُحَمَّدٍ بِيَدِهِ لَا يُؤْمِنُ أَحَدُكُمْ حَتَّى يُحِبَّ لِأَخِيهِ مَا يُحِبُّ لِنَفْسِهِ مِنْ الْخَيْرِ
sunnah.com