´'Abdullah bin Amr narrated that:` 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."
Hadith Referenceسنن ترمذي / كتاب البر والصلة عن رسول الله صلى الله عليه وسلم / 1908
Hadith Gradingالألبانی:صحيح غاية المرام (404) ، صحيح أبي داود (1489)
´Muhammad bin Jubair bin Mut'im narrated from his father, that:` the Messenger of Allah said: "The one who severs ties will not enter Paradise." Ibn Abi 'Umar said: "Sufyan said: 'Meaning: Ties of the womb."
Hadith Referenceسنن ترمذي / كتاب البر والصلة عن رسول الله صلى الله عليه وسلم / 1909
Hadith Gradingالألبانی:صحيح غاية المرام (407) ، صحيح أبي داود (1488)