He who likes that his sustenance should be expanded and his age may be lengthened should join the tie of kinship. (Using translation from Muslim 2557b)
أَنَّ النَّبِيَّ ﷺ قَالَ مَنْ أَحَبَّ أَنْ يُوَسِّعَ اللهُ عَلَيْهِ فِي رِزْقِهِ وَيَنْسَأَ لَهُ فِي أَثَرِهِ فَلْيَصِلْ رَحِمَهُ