Anas ibn Malik reported that the Messenger of Allah ﷺ said, "Anyone who wants to have his provision expanded and his term of life prolonged should maintain ties of kinship."

أَنَّ رَسُولَ اللهِ ﷺ قَالَ مَنْ أَحَبَّ أَنْ يُبْسَطَ لَهُ فِي رِزْقِهِ وَأَنْ يُنْسَأَ لَهُ فِي أَثَرِهِ فَلْيَصِلْ رَحِمَهُ

Abu Hurayra heard that the Messenger of Allah ﷺ say, "Anyone who wants to have his provision expanded and his term of life lengthened should maintain ties of kinship."

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ مَنْ سَرَّهُ أَنْ يُبْسَطَ لَهُ فِي رِزْقِهِ وَأَنْ يُنْسَأَ لَهُ فِي أَثَرِهِ فَلْيَصِلْ رَحِمَهُ