the Prophet said: "Merely maintaining the ties of kinship is not adequate. But connecting the ties of kinship is when his ties to the womb are severed and he connects it."
عَنِ النَّبِيِّ ﷺ قَالَ لَيْسَ الْوَاصِلُ بِالْمُكَافِئِ وَلَكِنَّ الْوَاصِلَ الَّذِي إِذَا انْقَطَعَتْ رَحِمُهُ وَصَلَهَا