لَا يُؤْمِنُ أَحَدُكُمْ حَتَّى يُحِبَّ لِأَخِيهِ مَا يُحِبُّ لِنَفْسِهِ
None of you has complete eemaan until he loves for his brother
that which he loves for himself.
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(Taken from Hadeeth 13 of Nawawi’s 40. Al-Bukhari and Muslim)