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." (Using translation from Tirmidhī 1908)
قَالَ النَّبِيُّ ﷺ لَيْسَ الْوَاصِلُ بِالْمُكَافِئِ وَلَكِنَّ الْوَاصِلَ مَنْ إِذَا قُطِعَتْ رَحِمُهُ وَصَلَهَا