The Noble Prophet (PBUH) said: ""Whoever hears the voice of the oppressed asking for help from Muslims and does not help him, is not Muslim."[1]
[1] Al- Kafi, V. 2, P. 164 مَنْ سَمِعَ رَجُلاً يُنادى يا لَلْمُسْلِمينْ فَلَمْ يُجِبْهُ فَلَيْسَ بِمُسْلِم
