The Prophet said: "No woman should ask for the divorce of her sister (in religion) in order to spill what is in her container."  

النَّبِيَّ ﷺ قَالَ لاَ تَسْأَلُ الْمَرْأَةُ طَلاَقَ أُخْتِهَا لِتَكْتَفِئَ مَا فِي إِنَائِهَا قَالَ وَفِي الْبَابِ عَنْ أُمِّ سَلَمَةَ