Musnad Ahmad, book 1Page 57

The Rahim (kinship ties) is hanging on to the Hujzah of the Most Merciful; He maintains ties with whoever maintains it (the Rahim) and severs ties with whoever severs it

Ibn ‘Abbās (may Allah be pleased with him) reported in the Prophet (may Allah's peace and blessings be upon him) said: "The Rahim (kinship ties) is hanging on to the Hujzah of The Most Merciful; He maintains ties with whoever maintains it (the Rahim) and severs ties with whoever severs it."

حَدَّثَنَا رَوْحٌ حَدَّثَنَا ابْنُ جُرَيْجٍ قَالَ أَخْبَرَنِي زِيَادٌ أَنَّ صَالِحًا مَوْلَى التَّوْأَمَةِ أَخْبَرَهُ أَنَّهُ سَمِعَ ابْنَ عَبَّاسٍ يُحَدِّثُ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِنَّ…

Narrated by Ibn ‘Abbās Explained